Lauren & she stopped speaking after she moved in with Spencer--on MTV's "The Hills", duh
[DOC] [TLE] Kristin Cavallari: The Hills Was "Pretty Fake," Feud With Lauren ... [PAR] Dec 4, 2012 ... Kristin Cavallari (L) and Lauren Conrad attend MTV's "The Hills Live: A ... During 
her two seasons on the show -- she joined the cast after Lauren Conrad ... being 
fake in the last couple of months (along with Heidi Montag & Spencer).