Relationship education
Limerence vs. Infatuation
The two words are used as synonyms, and the person who coined one of them would have objected. Infatuation and limerence share the idealisation. They part ways on what keeps them alive.
Where each word comes from
Infatuation is an old word and an informal one. In Sternberg's triangular theory of love, it gets a technical meaning: passion without intimacy or commitment. That is attraction at full strength before you really know the person and before anything has been agreed. Most research on the experience uses the term “passionate love” and measures it on a scale rather than as a category.
Limerence was coined by Dorothy Tennov in the 1970s and set out in her 1979 book. She needed a new word mainly because “love” meant too many things, and she listed “infatuation” among the dismissive labels people gave to intense romantic attachment. She did not treat infatuation as a separate state; the distinction on this page is ours. What she did describe as central to limerence was the dependence of the whole emotional state on whether the other person reciprocated. Infatuation, as we use it here, describes how you feel about someone. Limerence describes how what they do controls how you feel.
In everyday use the words have collapsed back together, which is why people end up on pages like this one. The distinction is still worth keeping because the two states need different handling.
Five differences
| Dimension | Infatuation | Limerence |
|---|---|---|
| Idealisation | Strong. They seem exceptional; flaws are invisible or charming. | Strong, and the same. Both states run on an edited version of the person. |
| What sustains it | Novelty and exposure. It is fed by seeing them and fades with familiarity. | Uncertainty. It is fed by not knowing whether they reciprocate and can survive long periods of no contact. |
| Thinking | Frequent and pleasurable. You choose to daydream about them. | Intrusive and often unwelcome. The thinking arrives unasked and resists redirection. |
| Mood | Elevated. Infatuation mostly feels good. | Volatile. Elation and despair on the same afternoon, both triggered by them. |
| Rejection | Painful, then over. Infatuation that meets a clear no usually ends. | Avoided. Ambiguity is preferred to a clear answer, so the state protects itself from ending. |
The first row is the one that causes the confusion. Because both states idealise, they look identical from outside and feel identical at the start. The second row is the one that matters. Infatuation needs exposure to survive and dies of familiarity. Limerence needs a question to survive and can live for years on almost no contact at all.
The pull of an open question has some laboratory support. In a small 2011 study, women who did not know how much a man liked them thought about him more, and were more attracted to him, than women who were told he liked them a lot.
The practical test
What happens when you get more of them?
Infatuation is resolved by contact. Spend enough ordinary time with the person and one of two things happens: the idealisation meets reality and deflates, or it meets reality and becomes something more durable. Either way it moves.
Limerence is not resolved by contact, because contact is not what it is hungry for. Every interaction is a new set of cues to decode, and the decoding keeps the loop going. People in limerence often report that seeing the person made things worse, not better, and that the clearest periods were the ones where the question was temporarily closed, in either direction.
So the test is: over the last few months, has more exposure made this fade or intensify? Fading or settling suggests infatuation running its natural course. Intensifying, especially if the signals have been mixed, suggests the uncertainty loop has taken over.
Can infatuation turn into limerence?
Yes, and this is probably the most common route in. Infatuation supplies the idealisation and the intensity. If the other person then gives mixed signals, and if you are someone whose attention and mood are already prone to attaching to one source, the infatuation acquires a question it cannot put down. At that point the novelty-driven state has become an uncertainty-driven one.
The reverse transition is also possible. When limerence meets a clear, sustained answer, yes or no, the uncertainty drains out. What is left is either an ordinary relationship with its own infatuation phase, or a disappointment that fades in the normal way. The pages on limerence stages and how to get over limerence cover how that ending tends to go.
What each one needs
Infatuation mostly needs time and reality. Let it run, spend ordinary time with the person if that is available, and notice when the idealisation starts to include their actual limits. The only real risk is making large decisions while it is at its peak.
Limerence needs the opposite of what it asks for. It asks for more cues to decode; it needs fewer. It asks to stay uncertain; it needs an answer, or a decision to act as though the answer were no. It asks for all of your attention; it needs that attention to have somewhere else rewarding to go. None of that is intuitive, which is why the infatuation advice of “just spend more time with them” tends to make limerence worse.
If you are not sure which one you are in, the limerence self-reflection is built for exactly that question and is explicit about not being a diagnostic tool.
Two books worth reading
Tennov's Love and Limerence is the source text and still the most accurate catalogue of what the state feels like from inside. Tom Bellamy's Smitten is the practical one, including how to starve a limerent attachment. Both are reviewed, with the rest of the attachment reading list, on the books page.
When to ask for outside support
Neither infatuation nor limerence is a diagnosis. Consider a licensed mental-health professional if the preoccupation has lasted many months, is costing you sleep, work, or other relationships, or if the emotional swings feel unmanageable. If you may harm yourself or someone else, contact your local emergency or crisis service now.
Sources and evidence notes
Evidence checked October 14, 2026. Research psychology does not separate infatuation from limerence as categories; both fall under passionate love measured on a continuum. The distinction drawn here is ours, built from Tennov's description of limerence, and is intended as a reflection aid.
- Love and Limerence: The Experience of Being in Love
Dorothy Tennov (official publisher page). Tennov coined a new word mainly because "love" was too loose. She listed "infatuation" among the dismissive labels given to intense romantic attachment and did not treat it as a separate state; the distinction on this page is ours.
- A triangular theory of love
Sternberg, Psychological Review (1986). In Sternberg's model, infatuation is passion in the absence of intimacy and commitment. The model says nothing about intrusive thought or uncertainty, which is where limerence departs.
- Measuring passionate love in intimate relationships
Hatfield & Sprecher, Journal of Adolescence (1986). Passionate love is the research term that covers most of what people call infatuation. It is measured on a continuum; the scale does not separate infatuation from limerence.
- He Loves Me, He Loves Me Not: Uncertainty Can Increase Romantic Attraction
Whitchurch, Wilson & Gilbert, Psychological Science (2011). College women who were not told how much a man liked them thought about him most and were most attracted to him, more than women told he liked them a lot. A small laboratory study of attraction, not of limerence.
- Romantic love: an fMRI study of a neural mechanism for mate choice
Fisher, Aron & Brown, Journal of Comparative Neurology (2005). Early intense attraction engaged reward and motivation circuitry. Both infatuation and limerence plausibly share this substrate; what differs is what sustains it.
- Development and Validation of the Limerence Questionnaire (LQ-11)
Marshall et al., Psychological Reports (2025). The first limerence questionnaire with a published, peer-reviewed validation study. Its 11 items cover longing for reciprocation, intensity and passion, and neglect of sleep, appetite, relationships and responsibilities. The mood-dependence and fear-of-rejection features this page uses come from Tennov's description, not the questionnaire.