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It wouldn't be too surprising to find Kristin Cavallari playing "Christmas (Baby Please Come Home)" on repeat, because she and on-again fiance Jay Cutler won't be together for the holidays.

"I won't be with him Christmas Eve or Christmas, but I'll be with my mom and that whole side of my family," the 24-year-old MTV reality star and Illinois native told Us Weekly at the Alice + Olivia for Baby Buggy event in West Hollywood Monday. "Jay, unfortunately, is playing in Green Bay on Christmas Day."

It will be the first holiday the couple spends apart, "so obviously it won't be great," Cavallari said. "But it is what it is."

"The past year has been interesting," she added. "There have been a lot of ups and downs, but overall it's been great."

Unlike before, the former Laguna Beach star said she's not in a rush to walk down the aisle with Cutler, 28. "We're just enjoying being engaged," she told Us. "We were definitely planning the first time, but I can't plan the same wedding. I need to do something entirely different."