Re-reading my last post and Drifter's (and mb's too actually) I have a notion.
I have no evidence whatsoever to back this up by the way. I'm postulating, not even stating a firm opinion nevermind trying to present it as fact. So please don't get on my case about stating absolutes - because I'm not, not at all.
My assumption above is that some 100% straight men can't believe a woman can be 100% NOT attracted to men.
Drifter's assumption (more an observation in his case maybe) is that some 100% gay men can't believe that a man can be 100% NOT attracted to men.
In both cases the 100% man is unable to believe that a person he has potential to be attracted to would have no potential to be attracted to him. So is it, perhaps, an ego thing?
Does the same hold true in women? Are 100% straight women more likely to have a hard time accepting a man can be 100% gay?
I couldn't let this languish at the bottom of the page.
But then there are some women who think that they are so gorgeous that no man, even 100% gay can resist them. No?
But yes, I think that you are on to something here.
Sexual ego