Romantic love is not an emotion. ... It's a drive. It comes from the motor of the mind, the wanting part of the mind, the craving part of the mind.

Romantic love is an addiction: a perfectly wonderful addiction when it's going well, and a perfectly horrible addiction when it's going poorly.

The brain was not built to walk into a bar, where you know nobody, and start a conversation. That's not the way humanity has courted.

The main characteristics of romantic love are craving: an intense craving to be with a particular person, not just sexually, but emotionally.

When you're in the throes of this romantic love, it's overwhelming - you're out of control, you're irrational, you're going to the gym at 6 A.M. every day - Why? Because she's there.

Both sexes like the exercise and challenge of sports, but for men it's also a basic display behavior for impressing and winning a mate.

Romantic love allows you to focus mating energy. Attachment sustains that relationship as long as necessary to raise your baby.