What should I do?

I've really liked one of my guy friends for a long time (I'm 17) and told him a month ago. Unfortunately he never gave me an answer back. I was surprised he didn't answer, because he had invited me to prom, paid for my movie tickets etc, and done other sweet things a normal friend wouldn't. However, I just assumed maybe I was reading into it, and we have continued to be friends, and nothing is awkward between us. I've noticed though,he still is doing really sweet things though, not that I'm complaining, but he doesn't do the same things for our female friends. For example he will always make eye contact and stand super close, when he doesn't for anyone else. Or since I usually look down a lot, he'll nudge my shoe to get my attention or tap my shoulder and then grin when I look up( a few other friends look down too but he doesn't do the same, he'll just say their name and not make physical contact). And today one of our female friends tried to sit next to me in class (we were changing seats) and he told her to move because he's been sitting by me since the beginning of the year. And it wasn't that he didn't have any other friends in the class, he has several. I've also caught him staring at me at church and at school, then if I look over he sheepishly smiles at me.

I'm not really sure what to think, I'm trying to not over think it, and just accept we are friends, however his actions are confusing, and I want to be sure I don't act in some way that'll make things awkward.