Nicole Kidman is "shattered" following the end of her 19-year marriage to Keith Urban , insiders tell RadarOnline.com .

Friends say the Oscar winner, 58, is a "hopeless romantic" now facing the brutal reality that none of her major relationships have lasted. Article continues below advertisement

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Kidman and Urban, 57, share two daughters – Sunday Rose, 17, and Faith Margaret, 14 – but have been living apart since the summer. Urban moved into his own residence in Tennessee while touring, while Kidman stayed in Nashville with their children.

A source close to the actress said: "Nicole was convinced Keith was the one she would

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