I would guess that there are plenty of boys and girls in high school who are convinced that nobody would want to date them. It’s most likely not true, but if they’re not able to do the asking (and risk getting rejected) they never really know. I was convinced that no girl in my high school would ever want to date me (I have no way of knowing either way). I suspect that there are plenty of guys who would love to date the smart girls but are afraid they’ll be turned down. They don’t all wear pocket protectors or spend all day on the computer, either.
Educational attainment is less important to me than intelligence; my wife and I have a Master’s in the same discipline, but she’s probably the smarter one. There’s not a huge difference, though.