Sammi walks out on 'Jersey Shore'

It seems that enough was enough for Sammi "Sweetheart" Giancola. After months of fights with on-again-off-again boyfriend and housemate Ronnie Magro, the "Jersey Shore" star stormed out and quit the show on Friday, sources say. “She ripped off the mic pack at the house after a monster fight with Ronnie and quit,” Sammi’s friend said to Ok! Magazine. The volatile relationship between Giancola and Magro has been at the center of the show's second season. Insiders say that the fights still rage on in the upcoming season, which is currently filming at Seaside Heights, N.J. Everything seems to always go back to Magro's infidelity. On recent episodes, the housemates have discovered that he has been (at least) two-timing Giancola. The last blowout, which was caught on tape, was too much to handle for Giancola. “She feels stupid for believing him and he made a fool of her,” the friend said. “The door was left open for Sammi to return whenever she wanted, but she said ‘No way, not happening’ and is home,” another insider said. Though she was adamant on Friday, the fickle-minded housemate changed her mind. Producers convinced her to return to the show. A MTV rep neither denied or confirmed the claims, saying MTV normally doesn't comment on a show while it is still in production.