It think guys would be astounded at how much sex the hotties have. They screw a lot of dudes. Just not you.
Like I said, they are trying for a high-status guy (the "Alpha" males), they understand that a high-status guy has options, and if they don't keep him happy, then some other girl will. After a long while, she might lose hope in getting a commitment from an Alpha, and decide to settle for a guy who might not excite her, but at least has a decent income. Then later rape him in divorce court.