So I kind of think my crush knows I'm gay because of some events in the past. I dont really care if he knows because I know hes isnt the type of guy who would be an ass about It. So this one time he was randomly started pretendin to motorboat someone and I go "what are you doing?" and he goes "motorboating" and like a dumbass I forgot im not out and go "eww" and he says "what do you mean" and I just jokingly say "what if shes an A cup and you break your nose?" and we both awkwardly laugh it off lol. Also another time I was talking about going to a concert with my friend and her girlfriend and I told him how shes a lesbian. He wouldnt care if I were gay. I was just looking back at it and found this funny.
It sounds like you don't have to care. You could even come out to him, if the uncertainty is bothering you.