Surprise: Kristin Cavallari’s friend and former Hills castmate Audrina Patridge got engaged to her longtime boyfriend Corey Bohan over the weekend.

Audrina, who dated Corey on and off during her run on The Hills, told People that he proposed at the Summit House in Orange County, California. “[He] dropped to his knee and said, ‘We have been together for many years now and I love you more than anything. I want to spend the rest of my life with you—will you marry me?’” she revealed. “I was in shock and kind of didn’t even hear him, but I said yes!”

Kristin has so far remained silent on the happy news, but perhaps she has congratulated Audrina in private.

No updates about Kristin(’s book) today.

This has been 500 Days of Kristin.

[Photo via Getty]