I take a lot of heat from the women in my life (and a few of the men) by only dating younger women, usually between the ages of 23-28. The woman I am dating now is in her early 30s but we met when she was 29, so I grandfathered her in.
I'm 37 - I don't find women my age very attractive at all. The ones that are still available tend to be still available for a very legitimate reason: they don't radiate the kind of energy that appeals to me.
It's just a bit on the creepy side now when you're 37. You can probably even hold on to it well into your 40's. When you're seriously middle aged and beyond though, you'll really be looked at as a sick freak.
I'm 41, and I find the idea of relations with a 23 year old to be totally repugnant. Then again, my step-daughter who I raised from the time she was 12, is 26, so that probably has a lot to do with it.
Ignore the heat, you're doing fine. ;) Our culture is biased in favor of same-age relationships, and has been since the fifties (I blame mass media, particularly the movies.) I think that's at least part of the reason for the divorce rate. I can say for sure that I benefit enormously from my husband's 13 year age advantage on me-- he's always been calmer, kinder and more loving and more forgiving than any young man I ever knew. In fact, I've learned a lot from him about how to be.