That's dangerous. The fat fuck may think he's entitled to her company and actually attack her. You never know. You should NEVER give a man of whom you know he has no self-control or discipline, the SLIGHTEST hint that you may be interested in him. If, as OP says, the guy is both fat and abusive, OP risks an "accidentaly on purpose" rape attack from the fat fuck. And the planet will support him. No, the best option is the one someone has suggested: arrive in full shitlady uniform with shitlord of a man, and snog him in front of the fat couple. This should send the message that OP is not available for the fat fuck, and trigger the bully crazy. Double benefits. EDIT: I just saw the photograph. BEWARE OF THE GUY. She is a hurt bully that is making your life miserable, but he is dangerous. I normally wouldn't say this, but when my "danger alarm" has rung this strong, I have never been wrong. Make sure both of them see you with your partner ASAP. Do not EVER spend time alone with him if he is drunk or intoxicated. Ever. That guy may not be a psychopath, but he is selfish to the point where he will do evil things to get his way.  She's a weakling. I know she's the one who is making your life miserable, but she doesn't look strong enough to carry it any further. Seriously, I know she's treating you badly and he's being nice, but beware of the guy. I've rarely seen selfishness that huge painted so clearly in a face.