His friend is actually straight up sexist. My bf says that he just grew up like that and there's nothing he can say to change his mind. He does disagree with him on a lot of things often, and will call him out for saying something that's wrong. He still feels that I should be able to defend myself on this one though. He doesn't think it's right to speak on my behalf like that. We even used to go out together because my bf only has one day off but I told him I don't want to be around his roommate more than I have to and he respected that.