This guy is driving me crazy.

I have an small crush(more like curiosity) on a guy that is supposed to be straight.He always seemed like a jerk to me, typical sports guy with a bunch of friends who all act alike, but lately, about a year ago, I started to see him getting more mature and cute and then I noticed we have a lot of things in common, that blew my mind and immediately wanted to know more about him.So well, we have a friend(girl) in common and every time we meet we do it with her, because he's not into social media and we're not even friends to meet privately, so yeah, the little time we spend together I try acting lime he's not big deal, just bros, etc, but he always acts interested, trying to know the things I like, sitting by my side on every given occasion, trying out my clothes and so many other things that makes me wonder what the f*ck does he want. He also prefer talking to me than to our friends even if I give him smaller talk.So yeah, what should I do? If I knew I had the chance even if it's just a hook up I'll keep trying but everything is taking a lot of time.He has been in like one long relationship that didn't end up well and he's not a fucker either.Another thing to tell: One day we were drunk with friends, he took "care" of me all night and I was so messed up I tried to kiss him. After that he seemed upset, but after all he continued talking and being interested in me, no mention about it.I think my mind is tricking me, but he acts weird too, strange combo...Excuse my non-perfect English, I'm native Spanish trying my best.