He already knows a few other girls that like him, and probably want to be with him. This way he doesn't have to start from square one. He's got his choice of women that like him. That's why you have to watch out for the guy who has a lot of friends that are girls. Don't think it can't happen to you, a lot of bastardly guys pull this trick all the time.
OK ladies listen up.
This one is very important, and every single one of you falls for it. It's a terrible theory, but many men use it. It's basically like our Ace in the hole. It trumps everything else we do. Here's how it works.