Esther Perel on why love and desire are in conflict, and what to do about it

There's a moment most long-term couples recognize. Early on, the wanting is almost automatic. You don't have to manufacture it, you don't have to schedule it. It just shows up. Then, gradually, it gets harder to access. Not because anything went wrong. Sometimes specifically because everything went right: you built a life together, you know each other deeply, you feel genuinely secure.

That's the paradox Esther Perel has spent her career describing. She's a Brussels-born couples therapist, the author of Mating in Captivity and The State of Affairs, and probably the most widely cited voice on desire and long-term relationships working today. Her central argument is simple and kind of uncomfortable: the conditions that make love work are structurally at odds with the conditions that make desire work.

She puts it directly: "Love is about having; desire is about wanting. An expression of longing, desire requires ongoing elusiveness."

This isn't a problem you can solve by trying harder. It's a tension you have to understand first.

You've been managing desire like a thermostat when it runs on a dimmer

There's a mistake I see couples make over and over, and it comes from thinking about desire the wrong way. Most people treat it like a thermostat. Something you can set, adjust, and turn back up when it dips. You lose the spark, so you schedule a date night, you buy something, you try a new position, you turn the dial and expect the heat to come back. When it doesn't, you conclude the mechanism is broken.

Perel's whole body of work points at a different model. Desire runs on a dimmer, not a thermostat. It isn't a switch you flip. It's a light that responds to the environment around it, and the environment it responds to is mostly about distance and curiosity, not effort. A dimmer dims when the room gets too bright or too still, when there's nothing left to lean toward. You can't fix that by turning the same dial harder. You fix it by changing the room.

What that means in practice is less effort aimed directly at the desire and more attention on the space around it. Are you two still separate enough people that there's something to discover? Do you have your own lives that make you interesting to each other? Are you still curious, or have you both stopped wondering? Those aren't romantic strategies, they're conditions. And they're the things a dimmer actually responds to.

What love needs and what desire needs

Love, in Perel's framing, is built on security. Closeness, familiarity, predictability, knowing someone inside out: these are the foundations of a stable bond. We want to feel safe with the person we're with. We want to stop performing. We want to come home.

Desire runs on something almost opposite. It needs mystery, a little distance, the sense that there's still something you don't fully have. Perel writes that fire needs air. You can't suffocate something and expect it to keep burning. Desire, she argues, is less interested in what it already has than in what it might still reach.

This is why the couples who describe the most fulfilling long-term erotic lives tend not to be the ones who are most merged, most comfortable, most in sync. They tend to be the ones who maintain some separateness: individual interests, their own friendships, their own inner lives. Not because distance is romantic, but because some degree of otherness is what keeps the pull alive.

Perel also makes a point that doesn't get enough attention: "erotic" doesn't just mean sexual. She defines erotic energy as a quality of aliveness: the capacity to feel curious, present, surprised, fully engaged. When couples say the passion has gone, she often hears something broader: a deadening of vitality together, not just a sex problem. And when she sees couples who've kept that spark over decades, what they've usually kept isn't a particular sexual technique. It's playfulness. Curiosity. The willingness to not fully know each other yet.

Why most couples try to solve the wrong problem

When couples notice desire fading, the usual response is to look for ways to add heat: new experiences, date nights, novelty. These aren't bad ideas. But Perel's point is that they tend to address the symptom without touching the cause.

The cause is that the relationship has gradually consumed both people's sense of separateness. You've optimized for closeness so completely that there's no distance left to cross. You know exactly how your partner will finish your sentence. You've stopped wondering who they are because you think you already know. That certainty might feel like intimacy, but it's also what makes desire quiet down.

She's not arguing for manufactured conflict or artificial mystery. She's arguing for genuine space, the kind that lets each person stay a full individual with things that belong only to them. When you encounter your partner doing something they love, something they're absorbed in that has nothing to do with you, that's often when the pull comes back. Not because they've become a stranger, but because you've been reminded that they're a whole person, not just your person.

What actually helps

Perel's most useful reframe is this: the question isn't "what happened to the desire we had?" It's "what kind of desire can we build now, with what we know about each other and ourselves?"

That requires letting go of the idea that desire should feel effortless the way it did at the beginning. Early desire was fueled by novelty and uncertainty and the nervous system reacting to something unknown. That's not available anymore, and chasing it is a dead end. What's available now is chosen desire. It's different, and can be just as real.

Some of what helps is practical. She talks about the importance of transitions: how you greet each other at the end of the day matters more than people think, because it signals whether you're actually glad the other person is there. Presence during ordinary moments (actually listening, actually looking up) does more for desire than most scheduled romance. So does curiosity (not interrogation, but genuine interest in who your partner is becoming, what they're thinking about, what they find funny this week).

And there's something she returns to that sounds abstract but isn't: seeing your partner from across the room. Not as your co-parent or your roommate or the person you need something from, but as someone you chose: someone other people find interesting, someone with a life of their own. The couples who cultivate that seeing tend to do better over time than the ones who've stopped noticing each other altogether.

The thing worth sitting with

What makes Perel's work useful isn't that it offers an easy answer. It doesn't. The tension between love and desire is real, and it doesn't fully resolve. It gets managed, navigated, tended to.

But naming it accurately changes something. If you believe desire should be automatic and its absence means the relationship is broken, you're in trouble. If you understand it as a structural challenge built into long-term intimacy, one that every couple faces and that thoughtful couples deliberately work with, you have something to actually work with.

The spark doesn't disappear because you stopped loving each other. It dims because you stopped leaving room for wanting. That's a different problem, with different solutions.