Look out Dean McDermott - your soon-to-be-ex wife has a book in the works and it will not paint a pretty picture. Mary Jo Eustace was married to Dean for 12 years and had a fabulous life with kids and all. It was like a dream come true. Until he ran off to do a Lifetime movie and cheated on his wife with "has-been" or "never-was" Tori Spelling. Ouch. Page Six reports more:

Her book proposal for "My Husband Left Me for Tori Spelling" begins with McDermott, 38, her actor-husband of 12 years, jetting off to shoot the Lifetime flick "Mind Over Murder" with Spelling, then returning to coldly inform her he'd slept with his co-star and, "We're soul mates. She loves me unconditionally . . . I don't love you any more. And I don't respect you. I haven't for a very long time."

"Wasn't it just two months ago that he'd said he'd never been more in love with me or proud of me?" writes Eustace, who'd moved from Canada to California so McDermott could chase his dreams of stardom. Adding insult to injury, she claims, he got a "Truly, Madly, Deeply, Tori" tattoo on his wrist - but he didn't have money to pay his wife's electric bills.

It has not been a good few weeks for Tori. First her funny VH1 show is lacking the viewership they had hoped for and now it looks as if someone is getting some sweet revenge against Tori and Dean. Oh the drama.