kristincavengaged230.jpg Kristin Cavallari and her boyfriend Jay Cutler got engaged over Easter weekend, a source tells Us Weekly.

"She is so excited and completely blind-sided," the insider tells the mag. The Chicago Bears quarterback reportedly popped the question while the two were on vacation in Cabo San Lucas, Mexico, and the pal added, "They've been celebrating all weekend; Kristin told her girlfriends; Kristin told her girlfriends on Monday."

Cavallari and Cutler started dating last August after Giuliana Rancic set them up, and it was reported that the NFL star had a crush on the Hills hottie before the two ever met. Aww, dreams do come true!