Kristin Cavallari and Jay Cutler end engagement

(CBS) - Reality TV star Kristin Cavallari and Chicago Bears quarterback Jay Cutler have called off their engagement, with Cutler the one who reportedly did the dumping.

Pictures: Celebrity splits
Pictures: Kristin Cavallari

"She got dumped," a source tells People. "She's absolutely devastated. She can't believe this is happening."

"She was planning her dream wedding, the date was set, the location - everything was set," the source adds. "She's in shock that the dream wedding she was planning is going to end this way."

The couple, who became engaged in April, were planning a spring wedding, and even completed their wedding registry.

Cavallari, 24, also celebrated her nuptials with an engagement party, which she tweeted about last week. "Thx to all my amazing friends for making my engagement party a blast last night!" she wrote. 

Sources tell E! Online that the two were at odds over some issues, mainly how "Cavallari would balance her career while living in Chicago" during the upcoming NFL season.

While the pair have yet to confirm or deny the reports, Cavallari hinted at the split on Twitter on Sunday.

"Thanks for the support. Love you guys, "she wrote.