He's an abuser and manipulative. She's a codie and also thinks she knows more than you (which, of course she doesn't). My daughter is attracted to scumbags like this too.
I don't know what I'd do other than what you already have, other than trying to get her to go to Alanon so she can figure out the reality of her situation.
This situation, too, is one of my worst fears.
Good luck and take care,
C-
P.s. Way to set the boundary and make clear to her her options (follow the rules or move out).