'Hills' star Cavallari to marry Bears QB Cutler

Better than a chocolate bunny and jelly beans!

"Hills" star Kristin Cavallari and beau of just eight months Jay Cutler got engaged over the Easter weekend, a source tells Us Weekly.

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"She is so excited and completely blind-sided," says the insider, who adds that the Chicago Bears quarterback, 27, popped the question while the duo was on vacation in Cabo San Lucas, Mexico.

"They've been celebrating all weekend; Kristin told her girlfriends on Monday."

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The reality starlet, 24, and football hunk met in August 2010 through an unlikely matchmaker: Giuliana Rancic!

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"You know who I set up? Kristin Cavallari and Jay Cutler," the "Giuliana & Bill" star and E! News host, 36, told Us at the Women's Day Red Dress Awards in February. "I knew them both for awhile and introduced them and they went on a date. Now they're dating."