By Alexis Tereszcuk - Breaking Celebrity News Entertainment Editor

As Ashton Kutcher and Mila Kunis stroll hand-in-hand on their romantic Italian getaway, his estranged wife Demi Moore is once again fighting with her daughters, this time over her inability to let their soon-to-be ex-stepfather go from her life, a source tells Breaking Celebrity News exclusively.

Rumer, Scout and Tallulah Willis want their 50-year-old mother to divorce Ashton now, a year after he was caught cheating on her, so she can finally end that chapter of her life.

“Demi just can't let go of Ashton despite him obviously moving on from her, and her daughters don’t think it's healthy or helpful for her,” a source close to the girls exclusively told Breaking Celebrity News.

“They are begging her to get over Ashton and move on with her life!”

As Breaking Celebrity News previously reported, after Demi’s trip to rehab her daughters were unhappy with how she continued to deal with her problems, and their relationship rapidly began to fall apart.

They tried to mend fences recently, but according to the source things are turning sour once again.

“All three girls want her to divorce Ashton and stop talking about him, they think that she needs to focus on the future and quit worrying about what he is doing,” the source says.

The photos of Ashton and Mila together have been a source of pain for Demi, who complains about their relationship to her daughters.

“Demi refuses to let it go, and her daughters are trying everything they can to get through to her that things are over with Ashton," the source says. “They love their mom but they want her to stop talking about Ashton!”

As Breaking Celebrity News exclusively reported, Demi is trying every trick in the book to delay her divorce from Ashton as she is furious her husband of six years ha