
It’s both! It’s usually a combo of them seeing mlm relationships/sex as inherently “dirty” (usually presents in the form of them stating they don’t date bi men because they think he’s more likely to give them an STD) and refusing to believe that a bi man will remain faithful to his partner
Oh I thought the difference was just because straight men tend to go for anything with a hole. Straight women tend to be more careful and selective in general, with stronger preferences in just about every category. It wouldn’t surprise me if that’s also the group least likely to date straight men.