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!
Gwyneth Paltrow and Winona Ryder
When Paltrow and Ryder dated Ben Affleck and Matt Damon respectively, the actresses were inseparable in the '90s — until Paltrow reportedly stumbled upon the script for Shakespeare in Love at Ryder's home. Adding salt to the wound, Paltrow won an Oscar for the role she allegedly stole from her BFF.