Ronnie Ortiz-Magro Denies Cheating Amid Jen Harley Breakup

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Ronnie Ortiz-Magro's ex has it twisted, he couldn't have cheated 'cause there was never a so-called mystery girl — she was just a friend … according to people close to Ronnie.

Sources close to the 'Jersey Shore' star tell us the girl Jen Harley accused Ronnie of cheating with … is a friend he was hanging out with Monday during a boat party. Our sources insist it was NOT a cheating sitch — still, Jen went off Thursday night in a series of IG Sory posts. She's since deleted most of them, but left one about her and Ron's 1-year-old daughter, Ariana Sky.

We've also learned the on-again, off-again couple has been broken up for a little over a week now. TMZ's confirmed Jen moved out of Ronnie's Vegas crib. Our Ronnie sources say he's got just one priority right now … Ariana. And, he's completely focused on her well-being.

ICYMI … Jen posted this Story showing a girl and Ronnie on a boat. You can see her hand is on his back as they look into the horizon. Jen asked in a poll, "Is this love???!!" She claimed it was Ron "with another girl again." That girl? We're told it was a friend consoling a bummed Ronnie.

Jen made other claims … pointing to Ronnie's short-lived relationship with Malika Haqq as proof Ronnie's the problem when it comes to relationships and not her. She also alleges he's abusive and a bully, who MTV protects because he's one of the network's "assets."

As we've reported over and over and over again …Read More – Source