Given the family dynamics, it is not difficult to see that the turmoil was amplified when Casey took control in the home. After that, it was all out war. But I also see that a lot of Cindy's behaviors since July 15 (and the small peek we've had into what transpired earlier) were about gaining control again so she could clean up the mess. That is after all what she has always done.
I do believe some of her behavior has been very healthy for her to have to face. She's had to confront her own dysfunction. In any person, that is never easy. I saw the changes she's made in her first day of testimony. I have seen it slip back into the defensive 'clean up' mode, also.
But over all, I believe she is in a better place now, if wounded beyond repair.