my dad is getting remarried.

I’m really devastated. My dad is getting married to this woman he’s only been with since October. I don’t know her. My dad and I are no contact. He’s a monster. A narcissist. Verbally and emotionally abusive and pushes sexual boundaries with his partners and his children. I’m devastated. I can’t tell her. I have some mental health issues and he’s probably told her that I’m crazy, so she wouldn’t believe me even if I did.

I want to reach out and tell her not to go through with it so badly. But I know I can’t do that. My sister told me it’s “not my responsibility”. I don’t know what to do. I feel so terrible for her. she BOUGHT THE HOUSE next door to his. I feel sick. they got together in October and got engaged in mid-december. I feel sick.

Any advice is welcome, or comments on it or anything you’d like to say. I’m just so sad. I don’t want anyone to suffer because of him anymore.