can you love someone and still cheat on them?

Believe it or not, as a couples therapist who specializes in rebuilding trust after an affair, I don't hear the title question that often.

Instead, what I actually hear in sessions sounds more like:

“I just want to understand why.”

Or, sometimes:

“In some horrible way, I'm so glad it's all finally out.”

It's as if both partners have been holding this horrible secret. Both of them felt it, but neither was brave enough to speak it aloud. And one of them is still in shock.

Perhaps that's part of what makes infidelity so disorienting for both the betrayed partner and the person who betrayed them.

If your partner says they loved you throughout the affair, the answer can almost feel worse than no.

Because if they loved you, how could they do this?

I think there's an important distinction missing from that question:

Love and the capacity to protect a relationship are not the same thing.

Someone can experience genuine attachment, desire, and belonging with a partner while also making choices that violate the agreements of that relationship.

That doesn't make the betrayal less painful. It does make it more complicated.

An affair does not necessarily mean there was a lack of love.

In my work, I often see something else happening alongside the betrayal: a person who has become increasingly disconnected from themselves.

Their sense of identity may feel unclear. Their self-worth may depend heavily on how other people see them. The values they believe in and the choices they're making may no longer line up.

Sometimes there are other forms of escape happening too. I've worked with people who were drinking heavily, using weed to disconnect, gambling, compulsive workaholics, or finding other ways not to sit too closely with themselves.

This doesn't explain every affair. And it certainly doesn't excuse one.

But it raises a different question.

Instead of only asking:

“How could you do this if you loved me?”

We might also need to ask:

“What was happening inside you that allowed you to repeatedly act against who you and I are together—to betray the life we've created?”

That's a harder question.

It asks the person who betrayed their partner to look beyond the affair itself and examine the internal conflict that made the affair possible.

And that takes time.

Not only for the betrayed partner, who is trying to understand what happened to the reality they thought they were living in, but also for the person who caused the betrayal, who may be confronting parts of themselves they had become very comfortable avoiding.

Sometimes, the relationship looked fine.

Most of my affair couples do not argue or fight very often. In fact, many of the couples I work with were still having sex during the affair.

But underneath that day-to-day functioning, each partner may be carrying disappointments, rejections, and a great deal of loneliness.

They've also learned how to adapt inside the relationship without exposing much of it to the other person.

You learn to say, “It's fine,” when it really isn't.

Maybe both of you have become too good at keeping the peace.

From the outside, this can look like an easygoing relationship. A partner who doesn't ask for much. Someone who lets things roll off their back.

Inside, something different may be happening.

Your body has learned a very efficient sequence:

Feel discomfort. Get away from discomfort. Feel better.

And every time it works, your nervous system learns the lesson again.

This matters in relationships because intimacy regularly asks us to do the opposite.

To tell someone what we want when they might say no.

To admit we're hurt without knowing how they'll respond.

To hear that we've hurt someone without immediately defending ourselves.

To tolerate another person's disappointment.

To say, “Something between us isn't working for me,” while sitting across from someone we desperately don't want to lose.

That requires more than love.

It requires the ability to stay present when love becomes uncomfortable.

And if you've spent years protecting yourself from uncomfortable emotions, an affair can offer something powerful—not necessarily a better relationship, or even a person you love more, but somewhere else to go.

Plenty of people struggle to tolerate difficult emotions and never betray their partners.

But when I'm trying to understand how someone who genuinely loved their partner could also deceive them, I'm interested in what they had learned to do with discomfort long before the affair began.

Oftentimes, the first thing a person learned to leave wasn't their relationship.

They learned to leave the truth behind.

Because exposing the truth would mean confronting the very things they'd become skilled at escaping. It might mean giving up the dopamine, validation, fantasy, or relief that had been protecting them from something harder to feel.

And that can feel incredibly risky.

Compartmentalization makes contradiction easier to live with.

Partners who betray someone they love are often skilled compartmentalizers.

Compartmentalization allows us to separate experiences that would be painful to hold at the same time.

I love my partner.

I'm lying to my partner.

I don't want to lose my family.

I don't want to give this up.

I'm a good person.

I'm doing something I know will hurt someone I love.

Holding all of those truths at once creates enormous internal discomfort.

So we separate them.

Home goes in one box. The affair goes in another. The person we believe ourselves to be stays somewhere else entirely.

That separation eases the contradiction enough to keep moving through everyday life.

Until it doesn't.

So, can you love someone and still cheat on them?

Yes.

But I don't think that's actually the most useful question.

Love tells us something important about how we feel toward another person. It doesn't tell us how well we tolerate shame. How honestly we communicate disappointment. What we do when we feel rejected. Whether we can sit beside someone else's pain without escaping our own. Or whether our behavior continues to align with our values when something easier, exciting, or soothing becomes available.

Those capacities protect relationships.

And when an affair happens, understanding what failed there can tell us much more than arguing over whether the love was ever real.

For the betrayed partner, this doesn't make what happened less painful.

For the partner who betrayed them, it doesn't make what happened less consequential.

It simply gives both people somewhere more useful to look.

Because rebuilding trust after infidelity isn't only about promising never to cheat again.

It's about becoming more capable of staying present for the hard truths that were once too uncomfortable to say out loud.

Love matters. But protecting love is something we learn how to do.