This is one of the reasons why corpo support and management are invaluable to a talent, they can give instructions or advice on how to handle a situation. Pippa has good people around her, they'll make sure she gets it right.
Obviously, Pippa (and Kirsche) aren't at fault at all for this situation, but I think it bears repeating, since I know Pippa is going to brainworm about it - they didn't do anything to instigate this behaviour or mental illness, there isn't anything Pippa or Kirsche could have done to even know that this was happening, let alone prevent it. They are in no way at fault for any of this.