Of course he'll have sex, but that invariably catalyses all these feelings and suddenly makes a free and happy relationship a serious commitment of time and emotion. Maybe it's oxytocin or something. Point is, when all he really wanted was a bad girl and a quick fix, he wound up with a girlfriend and a cosigner on his lease. Yes, ladies, it does happen the other way. Men have been known to attach themselves like remoras to a shark just because you let us think we had our way with you.
Modern relationships do to the spirit what television does for the mind.
They wear us down. It's a bad compromise. Women want commitment, but for longer than a year. Men want sex, but not just with their girlfriend. But we'll have to live with it.