My friend is giving me mixed signals, what do they mean?!?

My friend and I always joke around and stuff and we like to get into a lot of fights (like physicals ones). They pretty much happen every time i see him. We also "joke" around and stuff, and its all fun and games, but now i am starting to wonder if it means something else to my friend. Do you think he might like me, because the things he does are questionable. Should i say something to him, or talk about it? I would be ok with it, like with he he really is!