Paris Hilton was Kim Kardashian before Kim Kardashian was Kim Kardashian, a rich girl with a reality show and a sex tape to boot. Then Kim eclipsed her.
No wonder these formerly tight besties fell so far out of favor.
Then there’s Lauren Conrad and Heidi Montag, who were tight on The Hills before she started dating Spencer Pratt and that friendship was lost forever.
Or Rihanna and Katy Perry, who reportedly had a falling out for similar reasons. Or Madonna and Gwyneth Paltrow, who just stopped liking each other.
It doesn’t always take a man or a sex tape to come between you.
Nor is there always a controversial reason for drifting apart. Not everyone can be Taylor Swift and Karlie Kloss, and not all friendships can last forever.
Browse the photo gallery above for a reminder of some of the best celebrity best friends who have turned into celebrity best frenemies … or just enemies.
Pretty sure there’s no love lost between #2 on this list …