Steve-O and "Dancing With The Stars" alum Elisabetta Canalis are together no longer. The "Jackass" star has reportedly dumped Goerge Clooney's ex over concerns that her partying might challenge his sobriety.

"Steve-O dumped Elisabetta over her partying," says a source. "He is extremely serious about his sobriety and did not want to be dating anyone who could jeopardize that. He still really cares about her but can't risk relapsing back into his old ways, so he had to cut her loose. He needs to distance himself from her."

The pair started dating in January.

[NY Post]