An enraged Kendra Wilkinson threw her wedding ring down the toilet when she discovered husband Hank Baskett's affair with a transgender model, the new Us Weekly reveals. Credit: Jon Kopaloff/FilmMagic

Post-baby heartbreak. Just five weeks after giving birth to daughter Alijah, Kendra Wilkinson was forced to face a bitter, shocking truth: As rumored, husband Hank Baskett had indeed cheated with a transgender YouTube model named Ava Sabrina London. As revealed in the new issue of Us Weekly, out now, former Playboy model Wilkinson, 29, first laughed off reports of Baskett's April tryst with London, 25.

But when NFL pro Baskett, 31, didn't rush to clear his name in the press, his wife grew suspicious and "started snooping," a source explains to Us. Once Wilkinson discovered an unexplained—and damning—charge on his credit card, she "flipped out," the source says. In a rage, she punched walls in their Calabasas, Calif. home, threw their 2009 wedding photos into the pool, and even pulled off her wedding ring, flushing it down the toilet, the source says.

"She was extremely angry," the source observes of Wilkinson, who also shares son Hank IV, with Baskett.

For much more on Wilkinson's fury, Baskett's liaison with London—he cheated while his wife was eight months pregnant—and whether their marriage can be saved, pick up the new Us Weekly, on stands now.