I dated a girl, once, who was just as nerdy as me. We didn't get too much closer during the relationship, than we had been, before it, though. When she came out of the closet, I got some enlightenment as to why. Pretty one-off issue, but it killed my confidence.
After that, I dated the second of the two girls I've ever been with, who CLAIMED to be a geek, but... Well, suffice it to say, I was reminded why I'd always told myself no blondes. (And, besides, getting cheated on, on your birthday, which happened to be your 6-month milestone with her, is NOT a fun experience)
Since, I've noted a trend: I'm thoroughly unpopular with girls, in most regards. Least I get RESPECK for the armor from the guys.