Most Helpful Guy
first thing I'd like to say is, don't call him your "best friend" when he isn't someone you can talk to and someone you want more than a friend. Best friends and people you want to date are two COMPLETELY different things.
If all your going to do is play mind games with him, then I think it's best if you and he "mellow" out and start seeing more people. I think he could be tired of your games and wants to see more from his game than just one girl. I'd give it time and let him browse from girl to girl, and you do the same. Give yourselves a break.
Still talk to him though. Waive or say hi every now and then, just to be sure he knows you aren't mad at him for a strange reason.