[User23]

While it may be entertaining to feign hypotheses, really who cares? It's an observable fact and thus it has to be incorporated into any rational phenomenology.

But the glib answer is many women find nerds annoying. In particular, because of their desire to explain and even worse correct perceived errors without any regard for social niceties. As for why many women ultimately find those behavior patterns annoying, well that's where speculation takes over.