The reality couple's rocky relationship was believed to have ended in March when Ortiz-Magro said that he and Giancola were "not together".
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However, Ortiz-Magro and Giancola have been spotted together in public recently and one source has claimed that they are dating once again.
"Ronnie and Sammi are completely in love and just needed time apart to realise how much they missed and need each other," the source told Hollywood Life.
The insider also said of Giancola and Ortiz-Magro's reunion: "They have never been happier."
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Jersey Shore's cast are believed to have begun filming season six earlier this week.
The series will return to MTV later this year.
