What does science say about romantic compatibility?
Attachment Theory
Four styles: Secure (56%), Anxious (20%), Avoidant (23%), Fearful-Avoidant (1%). Best pairings: Secure+Secure. Worst: Anxious+Avoidant (toxic push-pull cycle). Take our [Attachment Style Quiz](/calculators/attachment-style-quiz).
Gottman's Research
The "Four Horsemen" predicting divorce with 93% accuracy: 1. Criticism (attacking character). 2. Contempt (disrespect — #1 predictor). 3. Defensiveness (refusing responsibility). 4. Stonewalling (shutting down). Antidote: 5:1 ratio of positive to negative interactions.
Love Languages
Words of Affirmation, Acts of Service, Gifts, Quality Time, Physical Touch. Mismatched languages need conscious effort, not breakup.
What Predicts Success
Shared values (money, children, lifestyle) > shared interests. Emotional intelligence. Growth mindset about relationships. Try our [Love Calculator](/calculators/love-calculator), [Date Ideas](/calculators/date-idea-generator), and [Toxic Relationship Test](/calculators/toxic-relationship-test).