Nicole Kidman feels “betrayed” by Keith Urban after he initiated the end of their romance almost 20 years following their matrimony.

That’s according to an exclusive source who told People Magazine that the Australian actor had been working hard to save the marriage. TMZ first broke the news yesterday of Kidman and Urban’s separation, claiming that the pair had been living apart since the beginning of summer.

Kidman, it’s said, has been spending the majority of her time with the couple’s two daughters, Sunday Rose, 17, and Faith Margaret, 14, while Urban has been residing in a new home in Nashville.

A further update today suggests that Kidman has officially filed for divorce, and court documents acquired by People shed light on a decision that appears to have been made regarding who will have primary care of Sunday and Faith.

Kidman, it’s claimed, has asked to become the primary residential parent of the girls. Urban has reportedly agreed to a deal that would see Kidman spend 306 days with their daughters, while he will take care of them for just 59 days of the year.

Earlier this week it was reported that Oscar-winner Kidman wanted to save her marriage, but Urban, 57, has other plans.