Black, it is best that the parents don't get involved. Why? Because the more they point out that she's doing something wrong, the more determined she will be to prove them wrong. As for the bidding...shame on them. That may be associated w/some of her childhood issues.
The fewer people that get involved in the situation, the better. That's just my opinion. Her crisis needs to run its course in order for her to grow up and become a mature woman. Too many interruptions along the way will prolong the crisis and, in some cases, stop it and then later on, she will re-enter the crisis and it will be far worse the second time around.
Try to keep the focus on you and your family. Dig deeper for patience and know that you can only control you and your actions and whatever she's doing...well...that's on her.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
