03/18/2010 05:12 am ET Updated May 25, 2011

Charlie Sheen Divorcing Brooke Mueller?

The couple, who have twin sons together, "will make their best effort at counseling," the source adds, "[but] divorce is definitely a possibility."

For now, Sheen, 44, and Mueller, 32, are giving their relationship a chance. "For the good of the children they definitely want to see if counseling will help before anything further is decided," says the source.

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