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A huge fight breaks out after Mike tells Jionni he hooked up with Snooki; Deena faces a difficult truth about Joey.
When The Situation and The Unit decide to stir up trouble, The Unit lands in jail; meanwhile, JWOWW plans an anniversary surprise for her boyfriend.
Mike prepares to confront Jionni, while Vinny and Pauly D run into Angelina at Karma.
The seventh episode of Jersey Shore's fifth season. The Situation's standing continues to unravel within the house.
The Situation secretly gathers information to bring down one of his roommates - and for once it isn't Snooki.
Vinny returns and everyone celebrates. The Situation tries hard to be nice but ends up annoying the boys. Snooki struggles with an uncomfortable condition.
Snooki and Deena get a swagger lesson from Pauly D, while it appears Vinny may be nearing a return to the Shore house.
Vinny decides to leave the house. Pauly gets a lot of birthday love from family and friends. Mike not so much.
A fed-up Vinny considers leaving the shore house, while Snooki clashes with Jionni.
The roommates return from Italy and couldn't be more excited. But a drama storm is brewing as The Situation threatens to destroy Snooki's relationship with Jionni.