They looked so happy when "Extra" sailed the Mediterranean with Nicollette Sheridan and her hunky fiancé Niklas Soderblom, but now the wedding is off, and split has rocked Wisteria Lane.

People magazine first reported the news, and now, "Extra" has confirmed it.

Sheridan's publicist told us Wednesday, "Nicollette Sheridan and Niklas Soderblom have parted ways after a year and a half."

Recent pictures snapped outside Sheridan's house show Soderblom loading up boxes, which fueled rumors that he was moving out. And when we caught up with Sheridan just days ago she played it coy, only saying, "Not telling."

Tune in to "Extra" on Thursday for much more on the bombshell breakup.