I don't understand him!?

Sounds like he is avoiding you, from my point of view it seems like he does not share the same feelings or else he would have told you. In other words don't waste your time, but if you feel like you want to keep liking this guy, then go on ahead. Just follow your heart :) Good luck. Btw, guys will be guys! They are ALL confusing :/ Except for edward cullen<3 haha.