Limerence is the intense, intrusive infatuation that hijacks your thoughts and feels like true love. Here’s what it really is, how long it lasts, and why.
Marie thought she was losing her mind. Forty-three, married fifteen years, two teenagers and a job she was good at — and suddenly she couldn’t get a man she’d met twice through work out of her head. Not for an hour. She’d replay a thirty-second exchange by the lift and mine it for hidden meaning. She checked her phone the way an addict checks pockets. When he replied, the whole day went golden. When he didn’t, she felt physically unwell. “I honestly thought there was something wrong with me,” she told us. “I’m a grown woman. I’d have told anyone else to get a grip.”
There wasn’t anything wrong with her. What Marie was experiencing has a name, and once people learn it, a lot of confusing things suddenly click into place. It’s called limerence — and it explains an enormous amount about why otherwise sensible, settled, happily-enough married people find themselves blindsided by feelings that arrive like a fever.
So what actually is limerence?
The term was coined in the 1970s by the psychologist Dorothy Tennov, who interviewed hundreds of people about being in love and noticed that a particular kind of infatuation kept showing up. It wasn’t quite love and it wasn’t quite lust. It was something more invasive: an involuntary, almost obsessive state of longing for one specific person, whom she called the “limerent object.”
If you’ve ever had a crush so consuming it bordered on the ridiculous, you’ve tasted a mild version. Limerence is that, turned up to a volume that interferes with your life. The defining feature is intrusive thinking — the person occupies your head whether you invite them in or not. You can be in a meeting, halfway through the washing-up, lying next to your spouse, and there they are again. Tennov found people reporting that they spent the majority of their waking hours thinking about one person they barely knew.
And here’s the cruel twist that makes it so powerful: limerence feeds on uncertainty. It thrives not when you’re sure someone likes you back, but when you’re not. Every ambiguous text, every “maybe,” every half-smile becomes fuel. The not-knowing is the engine. Which is exactly why it so often attaches itself to the unavailable, the new, the can’t-quite-have.
The symptoms nobody warns you about
People who’ve been through limerence describe a remarkably consistent set of experiences, and recognising them can be a genuine relief — because it tells you you’re not uniquely unhinged. There’s the intrusive thinking, of course. But there’s also the wild emotional swing tied entirely to the other person’s behaviour: euphoria when they’re warm, a crash when they’re distant. Psychologists sometimes describe it as your mood being outsourced to someone else’s text messages.
Then there’s the idealisation. In limerence, your brain quietly airbrushes the other person. Their flaws become charming. A boring habit becomes endearingly human. You build a version of them in your head that no real person could live up to — and then you fall for that version. There’s the physical stuff too: the racing heart, the shaky hands, the not-eating, the sleeplessness, the lurch in the stomach when their name appears. None of it is metaphor. Limerence is a neurochemical event. Brain-imaging studies of intense early-stage attraction show activity in the same dopamine-rich reward circuits involved in addiction. You’re not being dramatic. You’re being driven.
And underneath all of it runs one engine: a desperate hunger for reciprocation. Not sex, necessarily. A sign. Proof that they feel it too. Limerence is less about wanting the person and more about wanting them to want you back.
Why it’s not the same as love — even though it feels truer than love
Here’s where people get into real trouble, because limerence doesn’t feel like a chemical glitch. It feels like the most honest thing that’s happened to you in years. It feels like the truth your marriage has been hiding from you. That conviction — “this must be real, because nothing has ever felt this strong” — is precisely the thing that wrecks marriages on the strength of a feeling that was always going to fade.
Because intensity is not the same as depth. Love — the long, durable kind — is built on actually knowing someone: their morning moods, their irritating habits, the way they are when they’re ill or skint or frightened. Limerence is built on not knowing them. It’s the gap between you that gets filled with fantasy. Real intimacy tends to be calmer, steadier, and far less dramatic. Limerence is a fairground ride; love is a long walk. People in the grip of the ride often mistake the calm of a good marriage for emptiness, when actually they’re just comparing a roller-coaster to a sofa.
This isn’t to say limerence never grows into love. Sometimes it does — if circumstances allow the fantasy to be slowly replaced by the reality of an actual person, and you still want them once you truly know them. But the feeling itself is not evidence of anything except that your reward system has locked onto a target.
Why married people are so vulnerable to it
You might assume limerence is a young person’s affliction — teenagers mooning over someone in double maths. In fact, married people in their forties and fifties are spectacularly susceptible, and for reasons that have nothing to do with weakness.
Long marriages tend to be low on novelty and, often, low on attention. The dopamine systems that lit up so easily when you were first dating don’t get much to feed on across year fourteen of the same routines. So when a new person appears — someone who finds you interesting, who hasn’t heard your stories, who looks at you as a possibility rather than a fixture — the contrast is electric. It’s not that the new person is extraordinary. It’s that the attention is, because you’ve been starved of it.
Emotional neglect at home is rocket fuel for limerence. If you’ve spent years feeling invisible to your spouse, the first person who genuinely sees you can trigger a response wildly out of proportion to who they actually are. This is why limerence so often latches onto a colleague, a gym instructor, an old flame who slid back into your messages. Proximity plus attention plus an unmet need, multiplied by the safety of uncertainty. Marie didn’t fall for a remarkable man. She fell for being noticed again — and her brain attached that feeling to the nearest available face.
How long does limerence actually last?
The honest answer: longer than you’d hope, but not forever. Tennov’s research suggested limerence typically runs anywhere from around eighteen months to three years, though it can be shorter, and in cases where the uncertainty is endlessly drawn out — the perpetually “maybe” affair — it can drag on much longer. The single biggest factor is reciprocation. Limerence needs ambiguity to survive. Resolve the ambiguity in either direction — clear rejection, or steady, secure, reciprocated reality — and the fever tends to break.
That’s the painful irony for a lot of married daters. The very secrecy and uncertainty that keeps an affair feeling so electrically alive is also the thing keeping the limerence going. The hidden, snatched, can’t-quite-have-it nature of it is the perfect breeding ground. Which is worth knowing before you decide the feeling is a verdict on your marriage. Sometimes it’s just the chemistry of secrecy doing what it does.
What to actually do if you’re in it
First, stop panicking. Limerence is one of the most common experiences in human emotional life, and feeling it does not make you a monster, a fool, or a fraud. It makes you a person with a working nervous system and, very often, a quietly unmet need.
Second, name it. Just knowing the word does something. It moves the experience from “I’m losing my mind and this must be destiny” to “I’m in a recognised psychological state with a predictable arc.” That bit of distance is the beginning of getting your judgement back. You can feel something fully and still not hand it the steering wheel.
Third, get curious about the need underneath it. Limerence is often a messenger. The question worth sitting with isn’t only “do I want this person?” but “what is this feeling telling me I’ve been going without?” For many people the honest answer is attention, desire, conversation, the sense of being chosen — things that have quietly drained out of a long marriage. Sometimes that points towards trying to rebuild those things at home. Sometimes it confirms what someone already knew: that the marriage went cold a long time ago and the limerence simply switched the lights back on. Either way, the feeling is information. It just shouldn’t be the only thing you act on.
And whatever you decide, try not to make an irreversible, life-detonating choice at the absolute peak of the fever. That’s when the idealisation is loudest and your judgement quietest. Big decisions made at the top of a roller-coaster rarely age well.
Common questions about limerence
Is limerence the same as being in love?
Not quite. They overlap, and limerence can feel even more intense than mature love, but they’re different things. Limerence is an involuntary, often obsessive infatuation fed by uncertainty and fantasy. Love, in the lasting sense, is built on genuinely knowing someone over time. Limerence can grow into love — but the dizzy, can’t-eat, can’t-think feeling is not, by itself, proof that you’ve found “the one.”
How do I know if it’s limerence or a real connection?
A useful test is what the feeling needs in order to survive. Limerence runs on uncertainty and distance — it spikes on mixed signals and fades when things become secure and ordinary. A real connection tends to deepen, not deflate, as you get to know the actual person, flaws and dull mornings included. If the intensity depends entirely on not-knowing, that’s a strong hint you’re dealing with limerence.
Can you be in limerence with someone other than your spouse while still loving your spouse?
Absolutely, and it’s far more common than people admit. Limerence targets novelty and uncertainty, and a long marriage offers neither — not because the love is gone, but because the newness is. Plenty of people feel a genuine, settled love for their partner and a simultaneous limerent storm for someone else. The two can coexist, which is exactly why it’s so disorientating.
Does limerence ever go away on its own?
Usually, yes. Most limerence burns itself out within roughly eighteen months to three years, and often a good deal sooner once the uncertainty resolves. Clear rejection ends it. So, more gently, does reciprocated, secure, everyday reality — because the fantasy can’t survive contact with an actual ordinary person. The version that lingers longest is the one kept permanently “maybe.”
Is feeling limerence a sign my marriage is over?
Not necessarily. It’s a sign that something you need — attention, desire, novelty, feeling seen — has gone missing, and your brain has found a vivid place to point that hunger. Sometimes that’s a prompt to repair things at home. Sometimes it confirms a marriage that quietly ended years ago. The feeling is worth listening to, but it’s a symptom to understand, not a verdict to act on in a hurry.
If any of this sounds less like a textbook and more like the last few months of your own life, take some comfort: you’re experiencing one of the most human things there is. Limerence has hijacked poets, prime ministers and entirely sensible accountants alike. Knowing its name doesn’t make the feeling vanish, but it does hand you back a little of the perspective it tends to steal.
And if what you’re really missing is the simple experience of being noticed — of someone asking a question and staying for the answer — you’re in good and surprisingly large company. Discreetly, and without judgement, you know where we are at IllicitEncounters.com.
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