You know, when you've been dumped, the one thing you love to do is just forget about this human being, and then go on with your life - but no, you just love them harder.
Helen FisherIn general, men are wired to notice obvious signs that convey interest in mating - a warm smile, for example - and ignore other subtleties, like if your lipstick is faded.
Helen FisherThe human brain is built to compare; it's Darwinian to consider an alternative when one presents itself.
Helen Fisher