QotD: Bonded and in Pain is better than Lonely

A relationship that strays from one's prototype is limbically equivalent to isolation. Loneliness outweighs most pain. These two facts collude to produce one of love's common and initially baffling quirks: most people will choose misery with a partner their limbic brain recognizes over the stagnant pleasure of a "nice" relationship with someone their attachment mechanisms cannot detect.

from A General Theory of Love p161.