One is accused of being insane, while the other one is apparently a bitch. But according to Life & Style, it’s LeAnn Rimes who will need to watch her back when Real Housewives of Beverly Hills star Brandi Glanville’s book debuts next month.

A source tells the mag Brandi’s tell-all book contains some dirty details about how LeAnn hooked up with her ex-husband, Eddie Cibrian, and that the outspoken reality star is not holding anything back.

“She details the lies, affair, hurt and how it all went down,” the insider said. “LeAnn won’t be happy.”

LeAnn and Eddie met on the set of the Lifetime movie Northern Lights while both were still married, but the source said there’s much more to the story of their ill-timed romance. Real Housewives of Beverly Hills star Brandi Glanville was devestated by her ex-husband's cheating ways, and she's reportedly ready to get her revenge in print.

“There are things she [LeAnn] does not want her family and fans to know and soon they will,” said the insider.

Will you be buying Brandi’s book?

Source: Life & Style