Most Helpful Guy
I agree with DanteSparda. If he didn't get to make out with you and just moved on to someone who would, I doubt he is looking for anything serious. How did you turn him down? Did you just say no, or did you say why? If you just flat out turned him down, maybe he was upset, got drunk and made out with another chick to make himself feel better. I've done that before. It's hard to tell, but if he starts pursuing you, then that is a sign he really likes you. But, he might be respecting your friendship and doesn't want to be the guy to get in between friends, so I would let him know you like him somehow and see how he reacts. You don't even have to tell him you like him, just show interest.