Some stars cannot be best friends forever. Find out why these former celebrity BFFs are no longer pals, including Kim Kardashian and Paris Hilton's disintegration of friendship due to jealousy issues, Jill Zarin and Bethenny Frankel's nasty falling out on reality TV, and more!
Tori Spelling and Tiffani Thiessen
"All my cast members hate me," Spelling told Ryan Seacrest of her former Beverly Hills, 90210 pals. The problem? Spelling believes the actors — especially Thiessen — disapprove of how she met her husband, Dean McDermott. "She doesn't talk to me anymore," Spelling said.