NICOLE & KEITH OFFICIALLY DIVORCED! 'HER HEART IS BROKEN'

Family friends reveal Keith blindsided Nicole before he walked out on her to lead a new 'single' life

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Nicole Kidman filed for divorce just 24 hours after news broke that Keith had moved out of their family home.

Now, there is speculation he has since started dating a woman he works with in the music industry.

"Friends think her filing the divorce papers so publicly was her little act of revenge for him giving up on her," a close mate confirms to Woman's Day.

"Nicole did everything in her power to keep the marriage together. She's angry, but she also still doesn't understand why he walked out, after everything she's done to support him - and that hurts."

Nicole, 58, last week finally filed the divorce papers Keith, 57, secretly signed weeks ago, after giving up on trying to save their 19-year marriage, with insiders saying they first separated in June.

“Nicole's still in love with him, her love and loyalty have never wavered, and that’s why she’s utterly heartbroken. She wanted to keep the marriage together for the girls, but she’s also struggling to understand what happened.”