Dated a girl out of my league. Was great at the time, made me really appreciate her. Though in retrospect I probably just raised my standards after that I don't think so much there are really leagues (and that's honestly in the mindset of the girl and how stuck up she is) but I think there's kind of a reacher and settler thing in a lot of relationships. I suspect most relationships are asymmetric, one party likes the other party more. It is unlikely for both parties to like each other exactly the same. The degree of asymmetry OTOH is another matter.