Worst Thing You Ever Did To a Boy/Girl Friend In A Fight ?
Ok this is really bad but here it goes. MY girlfriend was taking a shower once and we were arguing so i turned the hot water all the way up and then held the door shut so you couldn't get out.
She totally freaked out but all she had to do was turn off the water.
Another time i threw out all of her shit in the pouring rain cuz she cheated on me. I know i sound like a prick but if you knew her you would be high fiving me

This is an ex-girlfriend i didn't take her back after i caught her cheating lol