Is fame proving too much for the 'Jersey Shore' guidos and guidettes?

Snooki's been dancing with potted plants. Vinny Guadagnino quit the show. Now comes news that Mike "The Situation" Sorrentino has also packed his bags and gone.

A source told 'Us Weekly' that "Mike walked off the show. He's so over the whole thing. I don't think he's coming back. Everyone in the house is so unhappy."

The macaroni rascals returned to their native soil after a tumultuous few weeks filming Season 4 of the hit MTV reality show in Italy.