Okay so here is how it all went down
Me and a good buddy of mine, happenstance we are both named Matt
We both decided to go on a camping trip over the weekend in the summer. I brought some UV Blue and Smirnoff and other drinks out to some land his family owns out in the middle of nowhere. We set up a tent and drank around a campfire talking about random stuff. Later we went into the tent and it was so hot that we were both in boxers. We started to play the "Have you ever" game where you say "I've never ___" and you drink if you have. So he started to say things like, "I've never thought about being gay" and things like that, which we both ended up drinking to. Later he made a joke about being bigger than me, and I said no way. So we both got hard and compared cocks. I started to jerk it and said, "I want a handjob sooo bad" and he agreed. We both looked at each other and said, "What happens in the tent, stays in the tent." so we started to give eachother hand jobs. This escalated into 69ing and he blew his load in my mouth and mine all over his face, right after we both konked out.

Nowadays we watch porn together and he will occasionally whip out his cock and jerk it right in front of me.

My question is, I'm not sure if he's actually gay because whenever I bring it up he just says, "I felt really gay" and laughs and changes the subject.
What should I do?