She hasn't discussed with me what it is about, but my other DD has told me it is about the fact that she thinks I chose DH#2 over her. Not going to be easy, I spent the first year with him saying that he couldn't discipline my kids etc...that ended up in them treating him any way they liked. Not ok. So I told him he was well within his right to say that the behaviour was not acceptable when it occured (often while I was out). She was a difficult teen, but grown into a lovely adult. Bit nervous about what will happen...