Women are naturally prone to compete over their mates.

There were real reasons that you were attracted to somebody originally. The brain doesn't pick willy-nilly. Unless you part ways hating each other for some reason, that mechanism could get triggered again. You can literally fall in love again.

Your sweetheart calls you by another's name. His eyes linger too long on your best friend. He talks with excitement about a girl at work. And the fire catches. Jealousy - that sickening combination of possessiveness, suspicion, rage, and humiliation - can overtake your mind and threaten your very core as you contemplate your rival.

The reason you take antidepressants is to feel calm. And romantic love is not calm -it's elation, it's mood swings, and you're killing all that when you take the drug.

Keep an open heart. We are wired to find love.

Most of us make up our minds in the first three minutes of meeting someone whether there's a potential for a relationship.

A Rolex watch or an expensive car are the things guys often use to show status, wealth, and basic desirability.