Sixteen months after parting ways with Ashton Kutcher after a messy cheating scandal, Demi Moore has finally gotten around to filing for divorce.

According to an insider, Moore was tired of trying to reach a settlement in a confidential and reasonable manner with Kutcher, so now she's opted to take him to court.

“Ashton made a lot of money after marrying Demi — a lot more than she made — but despite him becoming just as famous through her, he believes he doesn’t owe her that much,” the source says of their legal woes. “She has had enough ... After over a year of attempting to reach a settlement, Demi is definitely ready to move on."

"It’s hoped lawyers for both sides can reach a settlement this spring, otherwise the divorce will go into litigation and trial.”

Kutcher filled out his own divorce papers back in December, but this is the first time that Moore has reciprocated.

“Ashton has been very difficult during the talks," the source added. "You could even say he has been hostile.”

Which is awfully strange behavior for the highest paid actor on television -- let alone one with Mila Kunis on his arm. You'd think he'd want to get this whole thing over with already.

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