The Hills' new fifth-season episodes premiered on Tuesday night and featured the addition of former Laguna Beach villain Kristin Cavallari as a regular cast member, however Pratt said Cavallari isn't the reason she's considering leaving the show.
"It's not because of Kristin," she told Hollyscoop. "I was going to stay and see what happens after these 10 episodes, but I just don't think I can stand The Hills anymore."
Pratt added she actually thinks The Hills is better with Cavallari.
"The show is going to be so awesome. It's not going to be boring like all the other shows where they only focus on their work," she told Hollyscoop. "It's going to be new people, new characters, which equals new story lines. It's going to be a completely different show."
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