With women, (I'm 22) I don't really care at this point. If a confident girl comes along that fully understands the sacrifices and lower attention she'll get to make a business successful, then great.
The demands of a startup have to be somewhat similar to a baby. It needs you just about 24/7, can't do anything on its own, and needs the full support and unselfish attention of both parents.
If a girl is going to be constantly upset because the "baby" is getting more attention than her, she'll figure out really fast that she's got two choices - leave or help out. Obviously that's tough when you're trying to get to know someone, so for now I enjoy the lack of obligations to make a good relationship happen.
I just don't think it's valuable to put in more time than that in the long run. Does anybody disagree?
I guess my problem is that I keep hoping I'll meet a girl who feels the same way. Every girlfriend I've had has been less intense (I think that's the word I want?), and as a result when I get into these moods where I want to write for 8 hours straight, or code like mad, or whatever, she doesn't understand. And then, in turn, they never have these moments that I do, where you pour yourself into something and suddenly have something magical and your own.
I hope there're girls like that: I've met a few guys like that, but never girls. A guy can dream, I guess.