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American Idol's David Cook and Kimberly Caldwell have ended their relationship.
The pair split just before Christmas, according to Us magazine.
"They didn't want to make a big deal about it." said a source. "[David] has a lot of options and wants to explore them. He doesn't want to be tied down."
The source also claimed that reports Cook proposed to Caldwell with a Tiffany diamond were not accurate.
"That rumour was not true," they said. "The relationship just sort of dissolved."
Cook started dating the American Idol season 2 contestant in May 2008 after he asked her out during a red carpet interview.
