India, Oct. 1 -- Nicole Kidman and Keith Urban's separation after staying together for almost two decades has stunned fans. According to TMZ, the couple had been living apart since early summer. Insiders close to both stars say that the split was Keith's decision and that Kidman had been trying to salvage their marriage.

The Oscar-winning actor reportedly did not want the separation and was fighting to save things.

The pair, who married in 2006, share two daughters: Sunday Rose (17) and Faith Margaret (14).

While the news of the separation only surfaced this week, insiders told TMZ that Keith Urban may already be involved with someone new. Kidman's circle believes "all the signs point to the fact that Keith is with another woman," the ...