Tell her it's okay to walk away and that her well being and happiness comes first. He's not worth the stress or the tears no matter how much u love him.

I would tell her that shes the strongest person ive ever met and that its okay to feel terrible about it and to seek professional help if needed. Id also tell her that she should try to stay away from him no matter how difficult it is because people dont really change no matter how much we want them to. She needs to focus on herself and the baby right now.

I would say good for her.