People are more likely to fall intensely in love when....

“ People are more likely to fall intensely in love when they are anxious and their self-esteem is lowest.... Feeling inadequate, unhappy, and empty are virtual prerequisites for falling and staying desperately in love; at least temporarily, the ecstasy of desire seems to cure everything that ails you. There is a connection between aversive states of mind -- loneliness, shame, even grief and horror -- and a propensity to feel overwhelming passion; this is one reason why romances blossom in times of war or natural disasters, as well as during the private disasters of our everyday lives. ”

Jeanne Safer

From : The Golden Condom: And Other Essays on Love Lost and Found