The alleged reasons behind Nicole Kidman and Keith Urban‘s separation are surfacing after the shocking announcement that their marriage had come to an end. Related story Nicole Kidman Was Reportedly 'Blindsided' When Keith Urban Confronted Her Over Marriage IssuesBut what caused the separation between the country music star and the Oscar-winner? Why Did Nicole Kidman & Keith Urban Break Up? Kidman & Urban Were ‘Living Apart’ for Months Before Their SplitWhile Urban moved out of the family’s Nashville home early in the summer, Kidman was also making some solo plans of her own. Before you go, click here to look back at Nicole Kidman and Keith Urban’s relationship.