Your W is a very stuck person. Many, many years ago I dated this emotionally disturbed woman in my early college years and she's given to suicide attempts. I came to rescue her a few times until one day she told me she would do it. At that very moment, I had an awakening and flat out told her, "Go ahead and do it."
That was the beginning of the end of our R. I visited her in the psych ward once. Then afterward, I ended her R by gathering up our roommates and we told this XGF that she had a choice: move out or we all will move out. She chose to move out. That was that.
BTW, I had already called her mother about those incidents.
The moral of the story is: I was done giving in to her emotional blackmail attempts.