With abundance of options comes the ability to choose. With the ability to choose comes the need to select using criteria. Selection criteria when looking for a woman, in a world of abundance, would surely include a criterion that she won't sleep with just anyone, or else you're really only going where some other guy has been the night before.

In short - your self-value is rising, and with it are your standards. This is probably a good thing, although don't get too picky