Sometimes divorce can be a new beginning.

Demi Moore is hoping that's the case. A source tells Us Weekly that two weeks before the 49-year-old actress announced she and Ashton Kutcher were ending their marriage, Moore was optimistic about moving forward.

VIDEO: What went wrong in Demi and Ashton's marriage?

"She said [she] was going to change for the better," the source tells Us. "And [she said] that it was time for her to focus on herself again and her girls." (The Margin Call actress and ex-hubby Bruce Willis have three daughters: Rumer, 23, Scout, 20, and Tallulah, 17.)

PHOTOS: Demi's shrinking figure

When asked about Kutcher, 33, Moore said, "He has his thing," but told the source she "wanted to focus on her." 

The actress announced Thursday "with great sadness and a heavy heart" that she and Kutcher were ending their six-year marriage. The Two and a Half Men star infamously had a one-night stand with San Diego party girl Sara Leal, 22, in the wee hours of Sept. 24 of this year -- his and Moore's wedding anniversary.

VIDEO: Sara Leal talks about her one-night stand with Ashton

"As a woman, a mother and a wife there are certain values and vows that I hold sacred, and it is in this spirit that I have chosen to move forward with my life," Moore said in a statement.

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