Not sure.
I think both have a level of emotional volatility and traits of histrionic personality disorder (from their respective traumatic and dysfunctional childhoods).
BP upkept PDs saintly image whilst in the RF despite her having a number of affairs the first of which before PH was even two years old.
She was brittle, obsessive, fell out with many of her friends and family, pushed boundaries with stalking behaviour and had no concerns for the devastation caused to women and children in the relationships she persued with married men.
She spoke out indirectly via authors, had the tabloids on speed dial to leak and went full hypocrital revenge mode with the interview.
Her line 'there are 3 of us in this marriage' was disingenous - there were at least 5 due to her extramarital exploits.
She didnt stop for a moment to consider to hurt to her teenage boys of disclosing the sex life of their Dad on the global stage.
She did a lot of damage personaly and instituationally.