Derek Hough's dance card is once again open. A little less than two weeks after their first public date, the "Dancing With the Stars" pro and girlfriend Nina Dobrev have split, sources reveal in the new issue of Us Weekly.
The couple of six weeks -- who hit up Universal Studios' Hollywood Halloween Horror Nights in L.A. on Oct. 5 -- decided recently that the relationship had "played itself out," one insider tells Us. Geography was a factor, too: Hough, 28, is filming "DWTS" in L.A., while Dobrev, 24, is shooting "The Vampire Diaries" in Atlanta, Ga.
"The distance was too much to handle," a pal says of the pair.
Us Weekly first exclusively revealed that the two were dating in late September. "[Nina] was hanging a lot with Derek's sister Julianne," a source told Us at the time. "Then she fell for him."
And he for her. "Derek is smitten with Nina," the insider added. "He said he hasn't felt this way for a girl in a long time ... Everyone approves!"
Alas, the relationship seems to have run its course. But Dobrev's friendship with Julianne is still intact. "Julianne understands -- there are no hard feelings," another source tells Us of the Safe Haven star and the CW actress, who split from costar Ian Somerhalder in May after three years of dating.
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