Lisa Rinna sits down with ET’s Nischelle Turner, standing by every word in her memoir, ‘You Better Believe I’m Gonna Talk About It,’ out now. The former ‘The Real Housewives of Beverly Hills’ star calls out former co-stars Garcelle Beauvais, Denise Richards, Kathy Hilton and Sutton Stracke in the book, defending her harsh words for each, while also opening about her own secret battles, including with grief and postpartum depression.