(Yahoo!) - Chad Michael Murray apparently isn't a settling-down kind of guy.

The actor who played leading hunk Lucas Scott on "One Tree Hill" for nine seasons, has ended his seven-year engagement with former co-star Kenzie Dalton.

"Chad Michael Murray and Kenzie Dalton quietly parted ways earlier in the year," a rep for the actor tells omg! "Please respect their privacy at this time."

Dalton and Murray became engaged in 2006 after meeting on the "One Tree Hill" set in 2005. He was previously married to another of his co-stars, Sophia Bush, but their marriage ended after five months.

And it seems the actor may have moved on already — with yet another co-star. He was photographed driving away from Chateau Marmont in West Hollywood Wednesday night with Aussie actress Nicky Whelan, who will appear with him in 2014's "Left Behind."

Murray has appeared recently on the small screen in TNT's now-canceled "Southland," and in this summer's buzzy indie film "Fruitvale Station."

Up next, he'll be seen in "Tyler Perry's A Madea Christmas."

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