You Know What You Didthe Hills : Season 3 Episo... -

After Heidi attempts to hand Lauren a letter to reconcile, a screaming match ensues outside the club. Lauren delivers the legendary line, "You know what you did!" . She labels Heidi a "sad, pathetic person" and officially ends their friendship. Cultural Impact and Legacy

is the premiere episode of the third season of the MTV reality series The Hills , originally airing on August 13, 2007. It is widely considered one of the most iconic moments in reality television history due to its high-stakes drama and the permanent fracturing of the show's core friendship between Lauren Conrad and Heidi Montag. The Conflict You Know What You DidThe Hills : Season 3 Episo...

The episode was a massive success, viewed by 3.6 million people during its initial airing. After Heidi attempts to hand Lauren a letter

Fans have pointed out a famous editing error during the climactic scene where Lauren’s drink level and type appear to change between shots. Cultural Impact and Legacy is the premiere episode

The tension reaches a breaking point at a birthday party for Frankie Delgado at the Los Angeles nightclub Les Deux.