Guys are evolutionarily hard-wired to be attracted to healthy women in their prime child-bearing years
Many such women are "high-maintenance" because they know their current guy will put up with it, and if not they can find another guy who will (for a while). An unfortunate few continue to think they can get away with being high-maintenance past 100K miles
Some of us were taught by wise fathers to never be high-maintenance. BUT we still grow old.
I agree with the natural selection.
:-)