Giuliana Rancic accuses ex-Jerry O'Connell of cheating with a Spice Girl

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Looks like Giuliana Rancic never got back on good terms with her ex Jerry O'Connell!

In her new book "Going Off Script: How I Survived a Crazy Childhood, Cancer, and Clooney's 32 On-Screen Rejections," the 40-year-old Fashion Police co-host accuses O'Connell, whom she dated from 2003-2004, of cheating on her with Ginger Spice Geri Halliwell of all people!

"I was being two-timed for one of the lesser Spices?" writes Giuliana, adding that when she confronted him, "He had as much emotion as the customer-service representative who tells you your bags missed the flight."

Lesser Spices?! Those are fighting words!

Giuliana Rancic Spills on Dating Jerry O'Connell
Giuliana Rancic Spills on Dating Jerry O'Connell


WATCH: Giuliana Rancic Hints She Won't Be Returning to 'Fashion Police'

After splitting up, Jerry O'Connell, 41, married 42-year old actress Rebecca Romijn in 2007, who Giuliana claims in her book he also cheated with during their relationship. That year, Giuliana married Bill Rancic, 43, with whom she now shares a 2-year-old son.

Going Off Script was written before Giuliana's highly controversial Fashion Police statements about Zendaya's hair. Since then, Kathy Griffin and Kelly Osbourne have left the show, and Giuliana has given some indication that she may not be back next season.

NEWS: Giuliana Rancic Apologizes to Zendaya

"Going Off Script" hits shelves April 7.

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