Article continues below advertisementJessica Mulroney is reportedly in the process of writing a memoir - which could spell disaster for her ex-best friend Meghan Markle.While Mulroney has remained silent throughout the past five years since her friendship with the Duchess of Sussex came to an end and she was ostracized from Hollywood over a "while privilege" scandal, new claims suggested she could be ready to spill her secrets in an upcoming book.According to a news outlet, publishers are offering an advance of more than $1 million for Mulroney to share her story.