I have to say the beating of the FMC by the MMC (and the way it was presented as kind of sexy too, and followed by something I'd call rape also) bothered me more than the rape of the MMC. Jamie's rape was clearly unsympathetic, even if the psychological baggage wasn't handled as well as it should have been. Beatings should be presented in the same light, and I don't care when or where the story takes place, or what the FMC did or didn't do (unless she's threatening the life of the MMC and he has to use force to beat her off him). The fact that some readers seem to think that it's okay, even erotic, to beat women who do "stupid" things, well, that suggests to me that narratives like this do a lot of harm in society (most men who beat their partners think it's justified, after all, because they feel she's a bitch, or stupid, or dissing him).
Beatings that are portrayed as sexy by the author, and/or as justified acts by a sympathetic character, or where the victim falls for their assailant and it's not presented as Stockholm syndrome or something dysfunctional are real deal breakers for me. Maybe I'm sensitive, because I was in an abusive relationship once long ago, and I know how much it screws with your mind and self perception.