What is love, psychologically?
There is no single “psychology of love”, because love isn’t one thing. The most useful way in is to treat romantic love as several systems running at once. Anthropologist Helen Fisher splits it into three: lust (the sex drive, broadly indiscriminate), attraction (the focused, energised, slightly obsessive state of early romance) and attachment (the calm, secure bond that holds long partnerships together). They’re separable — you can feel one without the others — and they don’t run on the same clock, which is why the relationship that starts as a thunderbolt has to become something else to last.
The neurochemistry tracks that story. Early-stage romantic love lights up dopamine-rich reward circuitry — on brain scans it looks strikingly like the pattern seen in addiction, complete with craving, focus and withdrawal — while serotonin dips in a way that resembles obsessive-compulsive disorder, which is a fair description of how it feels. Longer-term bonding leans on oxytocin and vasopressin, the “pair-bond” chemicals. None of this explains away love; it just shows that the experience has machinery under it, and that the machinery changes.
Sternberg’s triangular theory of love
Robert Sternberg’s 1986 model — the one behind the triangle above — says love is built from three components: intimacy (closeness, warmth, the sense of being able to say anything), passion (physical attraction and romance), and commitment (the decision to stay, and to keep choosing it). The combinations name the kinds of love:
- Liking — intimacy alone. The good friendship.
- Infatuation — passion alone. The thunderbolt: exciting, consuming, fragile.
- Empty love — commitment alone. A decision to stay with the closeness and chemistry gone or never there.
- Romantic love — intimacy + passion, no commitment (yet). Classic early relationships.
- Companionate love — intimacy + commitment, low passion. Long marriages, lifelong friendships.
- Fatuous love — passion + commitment, thin intimacy. Whirlwind engagements; Sternberg’s judged the riskiest combination.
- Consummate love — all three. Sternberg was blunt that reaching it is easier than maintaining it.
A related and older distinction, from Elaine Hatfield and colleagues, is passionate versus companionate love — the intense, anxious, all-consuming version that tends to peak early and fade, versus the affectionate, trusting, durable version that can deepen for decades. Healthy long relationships usually involve a handover from one to the other (with passion that flares back up, not a steady burn).
Attachment: why you love the way you do
Attachment theory — John Bowlby and Mary Ainsworth on infants and caregivers, extended to adult romance by Cindy Hazan and Phillip Shaver in 1987 — is the best-supported framework for individual differences in love. It maps onto two dimensions: attachment anxiety (how much you fear abandonment and need reassurance) and attachment avoidance (how uncomfortable you are with closeness and dependence). Low on both is secure — roughly half to sixty percent of people, and the style most associated with relationship satisfaction and stability. High anxiety, low avoidance is anxious-preoccupied: love hard, watch closely, pursue when distance appears. Low anxiety, high avoidance is dismissing-avoidant: self-sufficient, withdraws under stress, wary of too much closeness. High on both is fearful-avoidant (disorganised): wants intimacy and braces against it, sometimes in the same hour. The attachment test above places you on this map — and the headline is that these are tendencies, not sentences: they shift with experience, with secure partners, and with deliberate work.
What actually predicts a lasting relationship
Not the intensity of the early passion — that’s a poor predictor and sometimes a negative one. The most robust findings come from John Gottman’s decades of observing couples: stable relationships run roughly five positive interactions to every negative one; contempt — eye-rolling, sneering, treating a partner as beneath you — is the single strongest behavioural predictor of divorce; and couples who last tend to “turn toward” each other’s small bids for attention rather than ignoring them. Add to that perceived partner responsiveness (the felt sense that your partner understands and supports you), and Arthur Aron’s self-expansion finding that doing novel, exciting things together rekindles closeness (the same line of work produced the famous “36 questions that lead to love”). Compatibility matters; how two people handle conflict, repair and everyday attention matters more.
A note on limerence and the obsessive phase
Psychologist Dorothy Tennov coined limerence for the involuntary, intrusive, almost feverish state of early infatuation — the constant mental replay, the hypersensitivity to any sign of reciprocation, the way the person becomes the organising fact of your day. It’s normal, it’s time-limited (usually months to a couple of years), and it is not the same thing as a stable bond — which matters, because building a life on the assumption that it’ll stay at that pitch is a setup for disappointment. The good news is what replaces it, when things go well, is sturdier than what it replaced.
How to read your results
The attachment test is a quick self-report — useful for naming a pattern, not for diagnosing one. The triangle is a thinking tool, not a verdict on your relationship. Both are best used as conversation starters — with a partner, or with yourself. And if any of this stirred something that wants more attention than a web quiz can give, that’s exactly what a good therapist is for. For a different (and more rigorously measured) angle on how your mind works, see IQ vs EQ or take the full IQ test.
References
- Hazan, C., & Shaver, P. (1987). Romantic love conceptualized as an attachment process. Journal of Personality and Social Psychology, 52(3), 511–524.
- Sternberg, R. J. (1986). A triangular theory of love. Psychological Review, 93(2), 119–135.
- Hatfield, E., & Walster, G. W. (1978). A New Look at Love. Addison-Wesley.
- Fisher, H. E., Aron, A., & Brown, L. L. (2006). Romantic love: A mammalian brain system for mate choice. Philosophical Transactions of the Royal Society B, 361(1476), 2173–2186.
- Acevedo, B. P., & Aron, A. (2009). Does a long-term relationship kill romantic love? Review of General Psychology, 13(1), 59–65.
- Gottman, J. M., & Levenson, R. W. (1992 / 2000). Marital processes predictive of later dissolution. Journal of Personality and Social Psychology / Journal of Marriage and Family.
- Aron, A., Melinat, E., Aron, E. N., Vallone, R. D., & Bator, R. J. (1997). The experimental generation of interpersonal closeness. Personality and Social Psychology Bulletin, 23(4), 363–377.
- Bartholomew, K., & Horowitz, L. M. (1991). Attachment styles among young adults: A test of a four-category model. Journal of Personality and Social Psychology, 61(2), 226–244.
- Tennov, D. (1979). Love and Limerence: The Experience of Being in Love. Stein and Day.