Jealousy in a relationship: when it is a signal and when it is an old wound

The phone on the table lights up. A name you don’t know. Your partner picks it up, smiles, types a few words and turns it face down. Meanwhile you sit opposite, pretending to read. Something tightens in your chest, and in your head a film is already running: who is that, why are they smiling, why did they turn the phone over.

Half an hour later, when you ask quite casually, you find out it was a colleague who had sent a photo of the broken coffee machine. You feel relieved. And at the same time a little ashamed, because in those thirty minutes you had already written a whole story of betrayal in your mind.

Jealousy is one of the oldest and most unpleasant emotions we know. It is hard to talk about, because it sounds like an admission of weakness or like an accusation. In this post I want to explain when jealousy is an important signal worth listening to, when it is the echo of old wounds that have little to do with your partner today, and where the line lies at which jealousy stops being a feeling and becomes control.

Jealousy is not one single thing

When we say someone is jealous, we can mean very different things. In 1989 the psychologists Susan Pfeiffer and Paul Wong proposed that we understand jealousy as something with three layers:

• emotional — the pang, the anxiety, the anger when you see your partner in a situation that feels threatening,
• cognitive — suspicious thoughts that keep coming back even when there is no reason: what if they are hiding something from me,
• behavioural — what you do: checking the phone, asking where they have been, following their posts.

This distinction matters, because the layers are not equally problematic. Emotional jealousy is part of almost every romantic relationship and in itself says nothing bad — it means you care and that you are aware you could lose something. Cognitive and behavioural jealousy are the ones that slowly eat away at a relationship, because they turn a feeling into a constant state of alert.

You will also find a short explanation of the concept in the knowledge base under jealousy. It also covers the difference between jealousy and envy: envy is about what you don’t have, jealousy is about what you have and are afraid of losing.

What the research says

For a long time jealousy was studied mainly by evolutionary psychologists. In 1992 David Buss and colleagues published a study in which they asked American students what would upset them more: their partner forming a deep emotional bond with someone else, or having sex with them. Sexual infidelity was chosen as the worse of the two by about 60% of men and only about 17% of women. Buss explained the difference in evolutionary terms, and the finding became very well known.

But also heavily criticised. In 2003 Christine Harris reviewed a broader range of studies and found that the gender difference depends strongly on how the question is asked: when people are not forced to choose between two options but are asked how upsetting each would be, the difference shrinks considerably. Both hurt both.

For everyday life, I find another line of research more important — the one that asks why jealousy flares up in some people at almost any prompt, and in others hardly ever. And here the answer often leads us to attachment.

When jealousy is a signal

I want to begin with the part that is often skipped in conversations about jealousy: sometimes jealousy is justified. Not in the sense that it excuses control or accusations, but in the sense that it points to something real in the relationship.

Jealousy can be a signal when:

• it is triggered by specific behaviour you can describe — not just a feeling but a fact: your partner hides messages they used to show you, withdraws from shared plans, talks about someone with a spark that is no longer there for you,
• something in the relationship has changed and you are not talking about it,
• after an honest conversation the feeling passes and does not return without a new reason,
• you feel it in this relationship, but not in every relationship you have ever had.

Then jealousy is not a fault to be fixed in yourself. It is an invitation to talk about what is happening between you. Perhaps a distance has grown unnoticed. Perhaps your partner really has crossed a line. If there has been infidelity, the way forward is different — I write about it in After infidelity: can the relationship be rebuilt.

When jealousy is an old wound

At other times, jealousy says more about where you come from than about where you are now. You can recognise it by the fact that it appears in response to ambiguity rather than facts: when your partner doesn’t reply to a message for an hour, when they are at a party, when they mention a friend from work. After an explanation you calm down for a short while, and then the unease returns, as if the explanation never quite reached you.

Attachment researchers, among them Mario Mikulincer and Phillip Shaver, have shown that people with a more anxious attachment experience jealousy more often and more intensely. In 1998 Laura Guerrero described how in them jealousy more often shows up as worry and checking, while in people with a more avoidant style it shows up as withdrawal and silence — which can be just as painful.

Why? Because anxious attachment develops where closeness in childhood was unpredictable. A child who never knew whether the parent would be available this time learned to pay close attention to the smallest signs of drifting away. That attentiveness protected them then. In an adult relationship, though, it sets off the alarm at every silence. If this sounds familiar, you may find it helpful to read Anxious attachment: why a partner’s silence sets off the alarm and Attachment styles: the four patterns we learn closeness by.

In relational family therapy, in which I am training, we look at this even more broadly: jealousy often carries feelings a person once lived through but could not process at the time. A child who watched one parent cheat on the other, or who felt that a brother or sister was favoured, may be most sensitive in exactly that place in an adult relationship. There is more on this in Emotional baggage from your family of origin: what we carry into our relationships. How jealousy lives alongside low self-esteem is the focus of When you think you don’t deserve your partner.

How to tell one from the other

In practice, jealousy rarely comes in a pure form. Most often it is both: something really is happening in the relationship, but the reaction is stronger than the trigger alone would call for, because it hits a place that was wounded before. So the question is not “Is my jealousy justified or not?” but “How much of this is about today and how much about before?”

It helps to ask yourself a few questions after each wave of jealousy. What exactly happened — what did I see or hear, not what did I think? How strong was my reaction on a scale from one to ten, and how strong would it have been if this had happened to a friend? Do I know this feeling from elsewhere? What would have calmed me in that moment?

If the answers repeat — if the reaction is always stronger than the trigger and the reassurance never lasts — that is a sign the jealousy is also carrying something old. That doesn’t make it wrong. It means your partner cannot be the only one who soothes it.

When jealousy becomes control

Here I need to be very clear. Jealousy is a feeling, and feelings are not a fault. What you do with that feeling, though, is your responsibility.

There is a point at which jealousy stops being a feeling someone carries inside and becomes a system of rules imposed on another person. The sociologist Evan Stark described this pattern as coercive control: the gradual restriction of a partner’s freedom, which often happens without physical violence but has similar consequences. The warning signs are:

• regularly going through the phone, messages, email — or demanding passwords,
• tracking location without agreement or as a condition for peace,
• rules about who the partner may see, how they may dress, where they may go,
• gradually cutting the partner off from friends and family,
• threats, humiliation or punishment by silence when the partner does not comply,
• persuading the partner that they are the one making things up or overreacting — there is more on this in the knowledge base under gaslighting.

These patterns are no longer jealousy. They are a form of abuse in a relationship, even if nobody has hit anybody. You will find a short explanation in the knowledge base under violence in a relationship. It often starts with the words “only because I love you so much”. But love that takes away your friends, your passwords and your freedom of movement is not a love that keeps you safe.

If you recognise these signs in your relationship, it is not your job to convince your partner that it is safe. Call the SOS helpline for women and children who are victims of violence in Slovenia on 080 11 55 or, if you are in immediate danger, the police in Slovenia on 113. In relationships like this, joint couples therapy is generally not the first step — safety comes first.

How to talk about jealousy

If jealousy stays on the first three steps — feeling, question, conversation — it is very possible to work with. The key is to talk about it as your own fear, not as your partner’s fault. This is how a conversation that is heading in a good direction might sound (composite, not a real person):

Ana: “Yesterday, when you laughed at a message and turned your phone over, I felt a tightness. I know it was probably nothing. But I wanted to tell you instead of going round in circles in my head again.”
Luka: “It was Petra, about that project. I can show you.”
Ana: “You don’t need to. What matters more to me is that you know it stings. I think it has more to do with me than with you.”
Luka: “What helps you when it hits you like that?”
Ana: “I think just being able to say it. And you not getting angry.”

Something important happens in this conversation: Ana does not demand proof or accuse, and Luka does not defend himself but asks what helps her. The jealousy is spoken and received without becoming a weapon. You do not learn a conversation like this overnight, and it will not always be this calm. If your arguments flare up quickly, you may find it useful to read How we argue safely in couples therapy.

A few things that help:

• Start with a description, not an interpretation. “I saw that …” instead of “You’re doing it again …”.
• Name the feeling. Fear, insecurity, the sense that you are not enough. Under anger there is almost always something more vulnerable.
• Say what you need, not what your partner must not do. “I’d like you to tell me when you’ll be late” is a request. “You’re not allowed to go out without me” is a ban.
• Don’t demand proof as the price of peace. A phone handed over calms things for one evening. Trust is built differently — more on this in the knowledge base under trust.

If you are on the other side

Being with someone who is jealous can be exhausting. You often feel you are constantly apologising for things you have not done. It is important to know two things.

First: your partner’s fear is not your fault, but it is not something they have made up either. If you dismiss it with “you’re overreacting again”, you won’t lessen it; you will confirm their sense of being left alone with it. A sentence like “I can see you’re scared. I’m here.” often helps more than any explanation.

Second: reassurance has its limits. You can be attentive and open, you can say where you will be. But you cannot use your behaviour to fill a wound that formed long before you. If the demands keep escalating, if your world is shrinking so that your partner can breathe easily, it is time to stop — and to talk about it with the help of a third person.

Sometimes one partner’s jealousy and the other’s withdrawal get caught in a loop that feeds itself: the more one checks, the more the other withdraws, and the more the other withdraws, the more the first one checks. This pattern is described in more detail in The anxious and the avoidant partner: why these two find each other.

Exercise: a diary of one wave

You do this exercise on your own, after jealousy has swept over you — not while it is happening. It takes ten minutes.

1. Write down what happened, as a camera would describe it. No explanations or guesses: “At 9.15 pm he got a message, smiled and turned his phone over.”
2. Write down what you told yourself about it. All the thoughts, including the ones you are ashamed of: “Someone else is more interesting to him than I am.”
3. Rate the strength of your reaction from 1 to 10, and then how strongly a friend who saw the same scene would have reacted.
4. Ask yourself when you first felt this feeling. In which relationship, in which house, with whom. You don’t have to find the answer — the question is enough.
5. Write down one thing you could tell your partner about yourself — not about them. For example: “When you turn your phone over, I feel shut out.”

After a few weeks you will probably see a pattern in the diary: which situations sting most, which thoughts keep repeating, and where the gap between trigger and reaction is widest. That is exactly the valuable material if you decide to talk to your partner or to start therapy.

Where this explanation falls short

I want to be careful here, because the distinction between a “signal” and an “old wound” can be misused.

“That’s your old wound” is not an argument. A partner who answers every one of your worries by saying it is down to your attachment or your childhood can dodge a question that deserves to be heard. People with anxious attachment are sometimes right too — perhaps even sooner than others. A psychological explanation must not become a way of taking away someone’s right to their own perception.

Not every relationship is worth saving. If your partner really is lying, hiding things or carrying on a parallel relationship, working on your own attachment will not change what is happening. Sometimes jealousy is the only part of you still telling the truth.

Sometimes jealousy goes beyond an ordinary emotion. Rarely, a person becomes firmly convinced of their partner’s infidelity despite all evidence to the contrary, the conviction takes them over completely and no explanation touches it. This is no longer only a question about the relationship, and an assessment by a doctor or psychiatrist is needed. The same applies if jealousy comes with intense hopelessness or thoughts of self-harm — then the Klic v duševni stiski helpline in Slovenia is available on 01 520 99 00 (7 pm to 7 am), as is the Samarijan helpline in Slovenia on 116 123 (24 hours a day).

If you feel the two of you have been going round in this pattern for a long time, it is often easier to untangle with the help of a third person. How I work with couples is described on the couples therapy page.

What to remember

• Jealousy has an emotional, a cognitive and a behavioural layer — the first is part of almost every love, the other two wear a relationship down.
• Sometimes it is a signal about what is happening between you, sometimes the echo of an old wound, and most often both.
• In people with anxious attachment, jealousy ignites in response to ambiguity, and reassurance does not last long.
• Going through the phone, tracking location, imposing bans and isolating a partner are no longer jealousy but control — a form of abuse.
• Talk about jealousy as your own fear, not as your partner’s fault.