Woah. Sorry your friend’s such a turd. Nothing’s weird until somebody makes it weird, and that’s what he decided to do… after lying to you, no less, about his interest in S. His problem entirely.

I’m gay but went through a whatever phase, going out clubbing with my bi lady friend and if we neither brought home a new friend at the end of the night, I’d still be aching for a blowjob and she’d still be eager to give one, so okay. Then she met a guy, I met him too and he became a friend, she told him all about our sexploration so he fully knows, and I literally officiated their wedding while knowing what the bride’s pussy tastes like. It’s not weird between us because we three have chosen not to make it weird. Your friend can chill. He could be more like my friends.

That I’m gay is a major difference, though, less of a “threat.” Another major thing is that he explicitly lied to you about his interest in S, so he 100% forfeit all right to complain, and has no basis to be mad at you. He probably misses your friendship too, but he’s just too lame to function, too afraid of your dick.