It isn't working out and it has become evident to everyone including her. Still, she can't seem to shake this guy.
I inquire as to how the break-up she had planned for the weekend went. "He freaked out and showed up at my house. I was one step away from calling the cops." Disturbed, I advised her to just part ways and get on with her life. She agreed but defended, "It's just a really shitty situation every time I try to break it off."
I clenched my jaw in frustration. "Of course it's a 'shitty situation'. Did you expect some sort of parade with floats and a marching band?"
She isn't ruining his life; he will get over her someday. If she doesn't break up quickly and honestly, she's cheating both of them. It's going to be ugly, and there's nothing anyone can do about it.