Julianne Hough and Chuck Wicks Split

 Rick Diamond/Getty Images

Julianne Hough and Chuck Wicks have split, Usmagazine.com has learned.

A source tells Us, "It was a mutual decision. They never saw each other, and she is so young."

The two began dating in 2008.

Wicks, 30, told Us they grew closer this past spring when they were paired up together on ABC's Dancing With the Stars.

Hough, 21, "makes me learn some difficult steps sometimes," he told Us. "She doesn't just let me dance around her. She challenges me, makes me pay attention and makes me want to pay attention."

During their time together, they also dodged their share of wedding rumors.

While he was on DWTS, Wicks vowed that he would never pop the question. "I promise to you I will not propose to Julianne on the show," he said in a radio interview this past April.

Still, he added that they have thought about taking the next step.

"We've been together almost a year now," he said in the April radio interview. "We have a great relationship, and we definitely always talk about what's in the future and the next step and marriage."

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