Just curious, the women should walk away and they don't, maybe it's a form of Stockholm Syndrome they have.
Such a woman isn't a normal, healthy woman. Abusive men can't get away with smacking the shit out of a normal woman. She'd either smack him back, leave or put a bullet in him in self-defense. Abusive men purposely chose weak victims. Such a woman needs help. She probably won't leave on her own volition.
A few years ago, we were in the Accident and Emergency part of a hospital in the middle of the night. There was a woman there who had been punched by her boyfriend, he looked very unappealing physically, anyhow two nurses were attempting to talk her into pressing assault charges and she wouldn't.
I remember thinking WTF is wrong with that woman, but that sort of woman has been emotionally weakened to the point she puts up with a POS, probably convincing herself that he won't punch her again, until he does, then she'd make more excuses not to leave.
Of course I should also add that men can be abused by women and a lot of men if a woman hit them, being men might not hit her back because she's a woman, which of course that type of woman would then use that as an excuse to keep being abusive.
Society needs to do more to help people in abusive relationships, men and women, it's almost a taboo like suicide, everyone knows it happens but nobody except professionals want to discuss it openly, which of course helps nobody.
