"Jersey Shore's" Ronnie On Sammi: We Were "Toxic" To Each Other

*GASP* Ya don't say?!?!?!?

Jersey Shore star Ronnie Ortiz-Magro reveals to Life&Style magazine why he and on-again-off-again girlfriend Sammi "Sweetheart" Giancola are no longer together and are better off apart!

"Some people are just toxic to each other." For three seasons, the love-torn roommates have tried to make their rocky romance work, but when Sammi lied about hooking up with another, Ronnie realized he needed his space. "Cheating is where I draw the line," states Ronnie, 25, who says he's too young for a relationship.

THEEEEEEE nerve! Pot, meet Kettle!

And what does Sammi think about the whole ordeal?

Sammi, 24, says the guy was just a friend, but now she says she'll never speak to him again. "I was given a bad-luck streak, and it was like everything at once came tumbling down," Sammi says.

"We're better off career- and health-wise figuring out what we need for ourselves," says Ronnie.

These two kill me! STAY FAR AWAY FROM EACH OTHER!