Kristin Cavallari: Lauren Conrad and I “Are Cool”

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Now that The Hills is over and done with, Kristin Cavallari and Lauren Conrad are letting bygones be bygones — but they're not exactly BFFs, either.

Cavallari, 23, replaced Conrad, 24, as the protagonist and "narrator" of the series in 2009, but the pair have a rocky history: as schoolmates on Hills precursor Laguna Beach, they both battled over Stephen Colletti. And both bad girl Cavallari and the milder Conrad dated Brody Jenner.

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"I saw her at the wrap party on Saturday and we caught up," Cavallari told UsMagazine.com at Tuesday's series finale party, explaining that they're now cordial — but that's about it.

"We are not going to lunch together and I don’t have her phone number, but we are cool."

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Cavallari is on chummier terms with fling-turned-friend Jenner. Jenner, 26, is now dating singer Avril Lavigne; Cavallari is seeing Miguel Medina, a cameraman from The Hills.

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Have they double dated? "We haven't yet, but we would," she told Us. "Our friendship is the most important thing and I don't think that anything will ever get in the way of that."

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