As in, they've moved on but their ex still hasn't come to terms with the fact that it's over and continues to fight with them.
Most Helpful Guy
Don’t let someone else’s crazy dictate what you do.1
Most Helpful Girl
I would tell the person to control their ex or its not going to work out and if they don't then I would accuse them of not being over them and just leave, unless I liked them enough then I would personally tell that person to leave us alone.0