Married for 30 years. Divorced for 2 1/2 years. Tried to reconcile, but my ex wife cut off all communication. She had Bi Polar disorder and we went through many hospitalizations. I believe she wouldn't have killed herself if I was still living with her. No note left. No warning signs noticed by our grown daughter. Suicide was ruled after a medical examiner's investigation. Wish I could have been there to talk her out of it. Am devastated.