Have Mario Lopez and his 'Dancing with the Stars' partner Karina Smirnoff had their last dance?

If the National Enquirer is to be believed, Lopez dumped Smirnoff after they were caught canoodling in Cabo a few weeks ago. Not letting grass grow under her feet, the tabloid goes on to report that Smirnoff has already taken a shine to another man and the two were seen kissing at a LA nightclub on December 7th. The tabloid also reports that when asked about Lopez, she replied: "Mario who?"

Ouch.

Sources told the Enquirer that the couple split after Karina accused Mario of "setting her up" to be photographed in Mexico. Allegedly, sources told the tabloid that Smirnoff was "furious" when the pictures of the couple made headlines. A source was quoted as saying that Smirnoff "felt the whole thing had been set up and arranged by Mario and his pal Joe to make a few bucks and get some publicity."

Moving on, sources have alluded that perhaps Karina's way of getting back at Mario was to be photographed with a "mystery man" known as "Matt."

"Karina and the guy posed for several shots," said the source. "She started kissing him and hanging all over him."