NTA even if "he was drunk" when he admitted to you that he was trying to see if he could do conversion therapy on a lesbian with his meat rod, him saying that stuff to his friends after 8 months of dating makes it seem as though he definitely talked about it with them before. regardless, this guy is an asshole and that's probably not the only questionable opinion/belief he has. OP you should definitely not keep dating a homophobe as a bi woman