Demi Moore is reportedly ready to break her "dignified silence" about Ashton Kutcher.

The pair split last year after Ashton was allegedly unfaithful on their sixth wedding anniversary, but are yet to legally divorce.

While Ashton has moved on and is dating Mila Kunis, Demi has struggled and spent time in rehab. She hasn't spoken out about their break-up but is now thought to be planning a book and tell-all interview with Oprah Winfrey.

"So far, Demi has kept a dignified silence but now she is ready to reveal all about her relationship with Ashton," a source told UK Grazia magazine.

Ashton has been spotted out and about with Mila a lot lately. They were seen canoodling in New York City, with Demi apparently upset by the images as they came in the same week she would have been married to him for seven years

"Demi is trying her level best to be strong, but every time she sees or heard of Aston and Mila she feels sick to the put of her stomach," an insider said. "These latest pictures have knocked her for six."