"Weeds" star Mary-Louise Parker, 43, has again split with sometime boyfriend and recent fiancé, Jeffrey Dean Morgan, 41, reports the AP.

The couple began dating after meeting on the set of the hit Showtime series, in which Parker is a suburban pot peddler, and Morgan plays her late husband.

Morgan is also known for his portrayal of hunky Denny Duquette on "Grey's Anatomy."