The actress, 43, who announced exclusively to Us Weekly on Dec.20 that she and her producer husband of 10 years Daniel Zelman had split earlier this year, has already found love again.PHOTOS: Most shocking splits of 2011 An insider tells Us that Messing has fallen for actor Will Chase, her costar (their characters share a romantic past! "Debra and Will have been together for about six weeks," says the insider.
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PHOTOS: Biggest cheating scandals of the year According to the source, Chase 41, has left his wife of two years, stage actress Stephanie Gibson (Chase has two tween daughters, Gracie and Daisy, from a previous marriage).
PHOTOS: Hollywood's most amicable exes "Will didn't break up Debra and Daniel.
It was over before she met Will," the source clarifies of Messing and Zelman, 44, who amicably share son Roman, 7, and will "continue to live together with their son, then gradually transition into a new living situation," they explained to Us in a statement.
Debra Messing doesn't mess around when it comes to dating.
The former "Will & Grace" star, 43, is already moving on from her 10-year marriage with her "Smash" co-star, Will Chase, a source confirmed to People.
"It all happened very fast and it's a difficult situation," the source said of the new romance.Messing announced her separation from husband Daniel Zelman, 44, early last week, but the couple later issued a statement that they intended to "continue to live together with their son, then gradually transition into a new living situation." The couple have one son, 7-year-old Roman.Chase, meanwhile, has also been making big moves in his personal life.The actor, 41, recently separated from his wife, Broadway actress Stephanie Gibson, though a source told Us Weekly that the impending divorce is a separate situation."Will didn't break up Debra and Daniel," the source said."It was over before she met Will." Chase and Gibson have no children together, but the actor has two daughters from a previous marriage.