After infidelity: can the relationship be rebuilt?

“The worst thing wasn’t what I read. The worst thing was waking up the next morning and forgetting for a moment. Then every cell in my body remembered.”

Many women and men could describe the first days after a disclosure this way. A message you were not looking for, a bill that does not add up, a confession in the middle of the night. And then a world that looks the same — the same kitchen, the same children, the same mug on the table — and yet nothing is where it was. The person closest to you has also become the one who hurt you most. And the one you would turn to first in pain like this is that very person.

This piece is about the question almost every couple asks at such a time: can a relationship be rebuilt after infidelity? I will not give you a simple answer, because there isn’t one. But I can describe what we know about it from research and therapeutic practice, how the phases of recovery usually unfold, who carries what in the process, and why forgiveness is not the same as forgetting. I write without judgement — not because betrayal does not hurt, but because judgement helps neither of you understand what happened and what comes next.

More common and more varied than we think

Infidelity is not rare, even though every couple experiences it as something that happened only to them. In a US national survey analysed by Michael Wiederman, about 23% of men and 12% of women who had ever been married reported having had sex outside their marriage at some point in their lives. The figures vary between studies, because people are reluctant to speak openly about it and because each study measures something slightly different. But the message stands: you are not the only one, and it does not necessarily mean your relationship was somehow especially broken.

What we call infidelity also varies enormously. For one person it is sex; for another, years of secret emotional closeness without touch; for a third, messaging that crossed a line; for a fourth, a secret online life. Where the line lies is a matter of agreement between partners — often an unspoken one. That is why one person says “it was nothing”, while the other experiences betrayal in its full weight. You can read more about how we understand the concept in the knowledge base under infidelity.

Shirley Glass, who studied infidelity for decades, described an image I find among the most useful: walls and windows. In a committed relationship, partners have a window towards each other — they see each other, trust each other, share — and a wall towards the outside world. In infidelity this is reversed: a wall grows between the partners, and a window opens towards someone else. Glass also observed that many affairs do not begin with looking, but with a slow slide — at work, in a friendship, in conversations that were entirely innocent at first.

Why disclosure works like a trauma

People who have discovered infidelity often describe things we otherwise know from traumatic events: intrusive images, sleeplessness, alertness to every sign, checking the phone, waves of anger and grief that come without warning. The researchers Kristina Coop Gordon, Donald Baucom and Douglas Snyder, who developed one of the most thoughtful approaches to recovery, therefore understand the disclosure of infidelity as an interpersonal trauma. Not in the sense of a diagnosis, but in the sense that a basic assumption collapses: that this person is safe and that you know who they are.

This means something very practical. If you are the hurt partner and you feel you are “going mad” because three months on you still cannot sleep, or a single smell throws you back — that is not overreacting. Your nervous system is doing what it does in the face of danger. And if you are the one who was unfaithful, this can help you understand why your partner cannot “just move on”, even though you have sincerely apologised.

The partner who was unfaithful is often in distress at this time too — in shame, in guilt, sometimes even grieving a relationship that has ended. That does not lessen the other’s pain. It simply means there are two people in the room who are hurting, each in their own way. You can read more about the difference between shame and guilt in the knowledge base under shame.

Three phases of recovery

Gordon, Baucom and Snyder describe recovery from infidelity in three phases. The model is not a timetable — the phases overlap and recur, and a couple may find themselves back in the first one months later. But it offers a map that helps many people give the chaos a shape.

Phase one: surviving the blow

The first weeks are about the couple surviving, without having to decide everything. The most important question in this phase is not “why” but “how do we get through next week”. That means a few concrete things.

Contact with the third person ends — clearly, verifiably, ideally in a way that lets the hurt partner know how it was said. Without this, rebuilding is impossible, because the wall between the partners cannot come down while the window elsewhere is still open.

An agreement on everyday boundaries. When and where you talk about the affair, what you do when a wave of anger comes, what you tell the children (usually very little, suited to their age) and what you tell friends. People in this phase often tell everyone everything — and later regret it, because those around you hold a grudge longer than the couple does.

No big decisions in a rush. Moving out, divorce, revenge, telling the third person’s partner — these are all decisions better made once the first shock has passed. That does not mean you have to stay. It means you decide better once you can sleep again.

Looking after your body. Sleep, food, movement, people who stand by you without telling you what you must do. If sleeplessness or despair lasts for weeks, see a doctor. That is not overreacting; it is taking care of yourself.

In this phase old patterns of arguing often surface too: criticism, defensiveness, contempt and stonewalling, which John Gottman described as predictors of a relationship breaking down. I have written about them in The Four Horsemen in relationships: Gottman’s predictors of a breakup. After infidelity they are understandable — but if they become constant, that is a sign you need help from outside.

Phase two: understanding, not excusing

Once the first storm settles, a question arises that is at once the most necessary and the most dangerous: how could this happen? Dangerous, because understanding easily turns into excusing (“well, you never had time for me”) or into the hurt partner blaming themselves (“if I had been different, it wouldn’t have happened”).

In this phase, Gordon, Baucom and Snyder recommend that the couple look at several levels at once. What was going on in the person who was unfaithful — their history, the way they cope with emptiness or stress, their ideas about fidelity? What was going on in the relationship — distance, unspoken resentments, years without closeness? What was going on in the circumstances — illness, loss, a new job, opportunity? And what was going on in the hurt partner — not as a cause, but as part of the atmosphere in which you were living?

In relational family therapy, in which I am training, I also pay attention to something else: the patterns each partner brings from their family of origin. It is not unusual for infidelity to repeat something that was once hidden at home — a father with another family, a mother who kept quiet, a child who knew but was not allowed to know. When this comes to light, the betrayal does not become any less painful. But it becomes understandable as part of a story longer than yours.

The aim of this phase is not for the hurt partner to say “I understand, so it’s fine”. The aim is for both of you to gain a fuller and truer picture — and for the hurt partner not to be left alone with an explanation they put together themselves in despair.

Who carries what

In this piece, this may be the most important part, because it is where couples most often get lost. On one side there is the temptation for the one who was unfaithful to carry all the blame, for everything that was ever wrong in the relationship. On the other, the temptation to “share the blame fairly”, because “it takes two to tango”. Both are wrong.

The one who was unfaithful carries responsibility for the decision. No matter how lonely they were, how cold the relationship had become and how strong the temptation, there was another way: a conversation, therapy, even separation. This responsibility is not a punishment. It is the condition for the hurt partner to be able to begin trusting again at all. An apology that ends with “but” does not work. I have written about how to apologise in a way the other person can accept in How to apologise and how to forgive — yourself included.

Both are responsible for the climate of the relationship. If you lived side by side for years without truly meeting, that is something you created together — and something only the two of you can change together. But that is a different question from the question of the betrayal. Distance explains why someone was vulnerable. It does not explain why they chose this particular path.

The hurt partner carries care for themselves. This does not mean they must “work on themselves” to become a better partner. It means they have a right to their own pain and their own pace — and that the decision whether and when to trust again is theirs.

Trust returns through actions

Trust does not return after betrayal with a single promise, but through a long series of small, verifiable actions. Your partner tells you where they are before anyone asks. The phone is no longer locked like a safe. They answer a question without rolling their eyes. And above all: they can bear the hurt partner asking the same thing for the fifth, tenth, twentieth time.

For many, this is the hardest part. After a few months, the partner who was unfaithful often says, “I’ve already told you everything, how much longer are we going to go round in circles?” It is understandable that they are tired. But a repeated question is rarely really asking for information. This is how it can look in therapy (a composite scene, not a real couple):

“You’re asking me the same thing again. I’ve told you ten times.”
“I know. But every time you go on a work trip, it all comes back.”
“Tomaž, when Petra asks again, what do you think she is really asking?”
A long silence. “Whether it will happen again.”
“And what would you like to answer — not to the question about dates, but to the one underneath it?”
“That I’m here. That I’m not going anywhere.”
Petra starts to cry. “That. That’s what I need to hear. Not dates.”

When a couple starts to hear the question beneath the question, the conversation changes. The hurt partner does not always need more details — sometimes they need reassurance that the other is willing to stay with their pain. I have described a similar path, from reproach to need, in From blame to needs: how a couple learns a new language.

A note on details: Snyder, Baucom and Gordon advise caution with precise sexual details. Questions about when, how long, what it meant and whether there is anything else you do not know help build a true picture. Graphic details, however, often create images that intrude for years. The right to ask remains yours — it is simply worth considering what the answer will give you.

Phase three: forgiveness that is not forgetting

The word forgiveness provokes resistance in many people. It sounds like “forget it and move on”, or like pressure to be generous before you are ready. Gordon, Baucom and Snyder describe it differently: as a process in which the hurt partner reaches a balanced view of the event and of their partner, in which the pain no longer controls them, and in which the wish to punish eases. None of this means it was right. None of this means forgetting.

One more thing matters: in their model, forgiveness is not the same as staying together. You can forgive and separate. You can stay and not yet have forgiven. Forgiveness is an inner process; the decision about the relationship is a separate decision. You can read more in the knowledge base under forgiveness, and about what happens when pain stays locked in under resentment.

Is it possible at all? A study by David Atkins and colleagues showed something that surprises many people: couples who came to therapy after infidelity started out more distressed than other couples, but improved faster during therapy. A five-year follow-up of the same couples painted a more complicated picture — more couples separated after infidelity — but many of them also stayed together and improved their relationship. So rebuilding is possible. But it is not guaranteed, and it is not the only good outcome.

An exercise: limited time for hard questions

One of the things that helps a couple most in the first months is not letting the affair take up all the time. This exercise makes that possible. Agree on it together.

1. Set a fixed time: for example, twenty minutes, three times a week, at the same hour. Not in bed, not before sleep, and never in front of the children.
2. The hurt partner asks, the other answers. Honestly, without defending and without “but”. If they do not know the answer or cannot give it, they say so.
3. Before each question, pause and ask yourself one more: what do I need to hear? Sometimes it is information, sometimes reassurance.
4. At the end, each of you says one sentence about how you are now. Not about the other person; about yourself.
5. Outside this time, write your questions down. When a wave comes in the middle of the day, note the question for next time. It is not forbidden, just postponed — and that gives you back part of your day.

If conversations within this frame keep turning into a row that ends with shouting or someone walking out, that is a sign you need a third person in the room. I have written about how the beginning goes in What happens in a first couples therapy session.

When rebuilding is not the right path

It would not be honest if you read this piece as a promise that every relationship can be saved. Sometimes rebuilding is not possible, and sometimes it is not right.

When the affair continues. If contact with the third person remains, even if it is “only friendly”, couples therapy cannot work. The window is still open and the wall stays up.

When infidelity is part of a wider pattern — repeated lies, control, humiliation or violence. Then infidelity is not the main problem, but one of its faces. If you are afraid in your relationship, the first step is safety: the SOS helpline for women and children victims of violence on 080 11 55 (in Slovenia), and in an emergency the police on 113.

When one of you has already decided. Sometimes infidelity is not the beginning of the end, but the way someone had already moved out of the relationship. Then therapy can be about separating with dignity, especially for the children’s sake. I have written about this in Support through separation: how therapy keeps loss from turning into resentment.

And this too: separating after infidelity is not a defeat. It is one of two honest decisions a couple can make in the end. If the pain ever brings you to thoughts of not wanting to live, in Slovenia call the Klic v duševni stiski helpline on 01 520 99 00 (every day from 7 pm to 7 am) or the Samaritan helpline on 116 123 (24 hours a day), and in an emergency 112.

What to remember

• The disclosure of infidelity often works like an interpersonal trauma — your reaction is not an overreaction.
• Recovery usually unfolds in three phases: the blow, the search for meaning, and moving on. The phases recur.
• The one who was unfaithful carries responsibility for the decision; both are responsible for the climate of the relationship. Understanding is not excusing.
• Trust returns through small, verifiable actions and through patience with repeated questions.
• Forgiveness is not forgetting, and it is not the same as staying together. Separation can be as honest an outcome as rebuilding.