I like a guy, but I don’t know if he’s gay and I don’t have time

I’m a uni student, and there is this guy that I couldn’t keep my eyes off of from the first day. We have one class together and that’s literally the only thing I look forward to every week, just to look at him and talk about uni. Sure it’s bland and going no where, but I’m convincing myself it is. The whole thing keep me back is, of course, whether he’s gay or not. We aren’t good enough friends to the point where I can, hell we aren’t even friends. But I still need to know, just for myself. I ran into him on a night out one time and while he said he wasn’t and had a long distance gf back home, my friends who I was with were not convinced and said he kept looking at me the whole night. There is the part of me that wants to believe in them, but of course, the other, more ‘realistic’ side takes the lead for now. It’s two days until our last class together before a month off, and I don’t know what subjects he’s taking, and of the ones we have in common, because we are doing a similar degree, i don’t know if we’ll have the same classes. So really, I have this one last opportunity to do anything. Knowing my luck, if I just come out with it all, he won’t be gay, will hate me, and miraculously, we will be in the same class times. I don’t even have an insta or anyway to talk outside of this one class, where we only talk after for the like 10 minutes it takes to walk to my car. I’ve tried to ask for the insta, which I’ve already found but haven’t requested, but chicken out right before doing it. I thought i could just say “hey, we should have a way to ask each other questions about the exams” or something along those lines, but cant for the life of me. What sucks js that someone else walks with us after class because she lives on campus and in the same direction, so it’s not even 1 on 1. It’s just bene eating away at me for weeks, because he seems like a nice guy and is cute, i just have a bad feeling he isnt gay. It’s the second time ive had a crush like this on a guy, of course, the first one was straight. Cant really catch a break, but we’ll soldier on no matter what.