The One Where Heidi Moves Out
One of the crazy moments that happened on The Hills, that also had us shedding some tears, was when Heidi Montag moved out of Lauren Conrad’s apartment to move in with Spencer Pratt. Heidi and Lauren’s relationship was never quite the same and a lot of fans, (and even Lauren!) blamed Pratt for the major rift between them.
Source: http://www.etonline.com/tv/189813_exclusive_the_hills_stars_heidi_montag_and_spencer_pratt_finally_address_lauren_conrad_sex_tape_rumors