Nicole Kidman “feels betrayed” by Keith Urban following their split after 19 years of marriage .

The 58-year-old Oscar-winning actress filed for divorce this week in a Nashville court citing “marital difficulties and irreconcilable differences.”

Insiders told TMZ , which was first to break the news Monday, that Urban, 57, initiated the split and that “Nicole did not want the separation and (was) trying to save the marriage.”

Friends in their inner circle added to TMZ that they believe Urban has moved on with another woman.

The Oscar-winning actress and the country music star, both Australian, were married in 2006 and share two daughters — Sunday Rose, 17, and Faith Margaret, 14.

“Nicole’s hurt and feels betrayed,” a confidante close to the former couple told PEOPLE . “It’s

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