Surely you would let this go on even if you became a couple. He was even grateous enough to let you come and watch the next time he and his friends has their way with your "innocent" crush.
My Gf swears that being really friendly and sending pics like this to my jerk roommate will "cool him off" but this is like the fourth time in a week and he's still bullying the f*ck out of me 😞