There's a difference between unwanted and wanted abuse. Obviously if someone came up to you and hit you over the head with a baseball bat you'd be pretty upset. But, then there are people who pursue all sorts of pain like physical fitness, martial arts, boxing etc. with people they trust because it makes them feel alive. The BDSM community is built upon that.
But, women also have a tendency to see what they want and not see when a guy doesn't have their best interest in hand. And sometimes there are women that do. I can count hundreds of times women have left handsome guys because they were cardboard cutouts.