Article continues below advertisementNicole Kidman was avoiding the public eye for months before news broke of her divorce.According to an insider, the actress, 58, was nervous about the moment the media would find out about her split from Keith Urban, 57.Kidman filed for divorce on Tuesday, September 30, but the separation was allegedly brewing long before that.Article continues below advertisementSource: MEGANicole Kidman and Keith Urban were married for 19 years.