Still liking him normal. It may take a while to get over him. It will also take a while before you stop thinking about why he chose her and not you. Keep in mind, that it has nothing to do with what the other girl has and what you don't have. The problem lies within the guy. He's so incredibly insecure with himself, that he needs self validation by having as many women as possible. Don't be surprised if he keeps you in his phone book and calls you again. You'll just be rebound and everyone is better than that!
Unless.....he's under 20. Most men & women at that age don't value the meaning of true love, romantic emotions and relationships. It takes getting burned a couple times to really know that you'd never do to someone else, what others have done to you. And....how valuable trust, loyaly, love & self respect are. You'll get over him. Just ignore him and give it some time.