Is this guy gay/straight/bi?

Im gay so I was at a school football game and a boy that i've been eyeing has moved a couple rows down from where he was standing and made his way behind me. I could feel him touch my elbows and feel his arm rub against my side. After a while he started to touch my shoulder. Whenever I try to look back when he does this, he is talking to another person. But sometimes I turn around and catch a glimpse of him and our eyes meet. He's done this a couple weeks before that and places his hands on my shoulder and squeezes reaching over me to talk to another person. We never talk but we know of each other. I've always seen him as that built straight jock but idk after this. Sometimes when he steps down, I can feel his shoulder against my butt. I'm always too scared too look but maybe he's just teasing me and messing with the "gay" guy. He's kind of a douche but I like the attention. He's gotten me aroused in public so. When he was leaving the game, I glanced over to him and I saw his face smiling at me like a douchey "haha" look. Is he teasing me or is he gay.