Thirded.

I think that, socially, asexuals are seen as frigid or aloof.
I'm not asexual but I can really appreciate asexuality. I have posters all over my bedroom and only one can be considered in any way erotic - and that's not why I have it.
I guess most men can use the rule, "If it's female, it's meant to be erotic so judge it that way. If it's not, it's not." That means they never have to think about asexuality in its own right. As an androgyne, I think differently, so I've had to teach myself about it.