The Affair as Symptom: What Infidelity Is Really Saying

Reflection

The Affair as Symptom: What Infidelity Is Really Saying

Dr Philippe Jacquet 18 July 2026 6 min read

When a couple comes into my consulting room after an affair, they usually arrive believing they know what has happened: one of them has done a terrible thing to the other. And the pain in the room is real, and I never minimise it. But after twenty-five years of sitting with couples in exactly this situation, I can say that the affair is almost never the thing itself. It is a symptom. Something was happening in that marriage, and in the person, long before anyone touched anyone, and the affair is the form in which it finally surfaced. The affair is a messenger, and it arrived carrying a message. Most couples shoot the messenger and never read the message. Until they read it, they are fighting over the act while the truth that produced it sits unopened between them.

There are several depths at which an affair can be read, and in the consulting room I usually find more than one of them at work.

The repetition: an old story restaged

Sometimes the affair is a repetition compulsion: a re-enactment of something from long before the marriage. An early experience of betrayal, of abandonment, of emotional neglect, of forbidden desire. The person stages again, as an adult, the drama they could not master as a child, this time from a different position in it. It looks like a choice about the marriage. It is often an old story using the marriage as its theatre.

The return of the repressed: the lover carries the exiled parts

The Jungian reading goes further. A long marriage, especially a well-organised one, is built by exiling parts of the self. The passion, the adventure, the youth, the aggression, the vulnerability, in a man very often the feminine side of himself he has never been permitted to live: whatever the marriage had no room for was pushed down. But the repressed does not die, it returns. And when it returns, it tends to arrive wearing another person’s face. The lover is rarely chosen for who they are. They are chosen for what they carry: the exiled parts of the self, come back to demand their life. This is why affairs so often bewilder even the person having them. They are not meeting someone else. They are meeting themselves, outside the marriage where they left themselves behind.

Betrayal as separation: killing the king

There is a harder truth still, and I say it carefully, because it explains and does not excuse. Sometimes betrayal is a necessary act of separation. Just as the son in the old stories must symbolically kill the king to become his own man, a dynamic I explore at length in my work on the father and son, a relationship that has fused into stagnation, two people merged, overly dependent, no longer distinct, sometimes cannot break through except by crisis. The affair can be an unconscious attempt at individuation: a violent, clumsy, wounding declaration that I exist apart from us. There were better ways to say it. But when a person cannot say it, they enact it.

The midlife affair: renewal, counterfeited

And then there is the affair I see most in my practice, the midlife affair, and it deserves its own understanding. To the ageing person, the affair gives exactly what the midlife crisis is starving for: vitality, youth, lust, power, intrigue, the whole flavour of renewal. And that is precisely the trap. Because the midlife crisis is a genuine call to renewal, but renewal forward, toward the next phase of life and the larger meaning it asks for. The affair answers the call by going backward: it returns the person to an earlier phase of life, a re-run of the young chapter with the years painted over. It is the right thirst and the wrong door, the same structure I have described in addiction: the need is real, the answer is counterfeit, and the counterfeit costs more each time. You cannot renew a life by repeating it.

How to rebuild trust after infidelity: the trust paradox

Then comes the question every betrayed person asks me: how do I ever trust again? And the honest answer contains a paradox. Trust cannot be restored by verification. You can check the phone forever and you will only become a warden, not a wife or a husband. In the end, the only way to regain trust is to trust: to take the risk, find the courage, and discover, day after survivable day, that you are still standing. Trust is rebuilt by trusting, or it is not rebuilt at all.

But, and this matters just as much, I would never tell a betrayed person to trust easily. The risk they take has to be earned by the other. The one who betrayed must build the base beneath that courage: through consistency, through transparency, through patience with a suspicion they created. Rebuilding trust is a work done from both sides at once, one earning it, one daring it. Neither can do it alone.

The wound as the door: why therapy, and why both kinds

After an affair, I think a couple needs two therapies: individual work for each, and couple work together. The reasons are practical, there must be a space for the hurt one’s wound and rage, and a space for the other’s guilt, and a space where what was missing from the relationship can finally be said. But there is a deeper reason, and it is the most hopeful thing I know about this whole terrain.

When a couple sits in the room and speaks these things, the pain, the shame, the longing, what each of them never found in the marriage, something happens that neither of them expects: they are being emotionally intimate, often for the first time in years. The affair tore the marriage open, and the tear is where intimacy re-enters. The very conversation the crisis forces is the conversation the marriage had stopped having, and it is the one from which a real relationship, including in time the physical one, can be rebuilt.

I want to be honest about the endings. This work leads to one of two good places: a relationship rekindled at a depth it had lost, or the most amicable separation two people can manage. Both are legitimate. What the work prevents is the third ending, the common one: the bitter, uncomprehended divorce in which the affair is never understood, the pattern travels intact into the next relationship, and the same message, unheard again, waits to be delivered again. An affair is a terrible way for the truth to arrive. But once it has arrived, the only real mistake left is to refuse to listen to it.

When it is not an affair but a hold: read Narcissistic Abuse.

When the affair is one sign among many: The Toxic Relationship.

Common questions

Can a marriage survive an affair?

Yes, and sometimes it emerges deeper than before, because the crisis forces the emotionally intimate conversation the marriage had stopped having. But survival is not automatic. It requires understanding what the affair was expressing, individual therapy for each partner as well as couple work, and a rebuilding of trust worked from both sides. The alternative good ending, an amicable separation, is also legitimate; the outcome to avoid is the uncomprehended divorce that carries the same pattern into the next relationship.

How do you rebuild trust after infidelity?

Not by verification. Checking phones and monitoring movements turns the betrayed partner into a warden and rebuilds nothing. Trust is rebuilt by trusting: taking the risk again, in small survivable steps. At the same time, the partner who betrayed must earn that risk through consistency, transparency and patience with the suspicion they created. It is a work done from both sides at once, and neither side can do it alone.

Why do people have affairs in happy-looking marriages?

Because the affair is usually a symptom rather than the problem itself. It may restage an old wound from long before the marriage, carry parts of the self the marriage had no room for, act out a need for separateness that could not be said, or answer a midlife hunger for renewal by going backward instead of forward. The lover is rarely chosen for who they are; they are chosen for what they carry.

Dr. Philippe Jacquet is an executive coach trained at ESSEC Business School and a Jungian analyst with over 25 years of clinical and coaching practice at Harley Street, London. He works with senior executives, CEOs and leadership teams in English and French, in person and by secure video. His coaching draws on both business school rigour and depth psychological practice, a combination built specifically for the problems that standard coaching cannot reach.