Lost Love has moved on - Help!?

I made mistakes- he made mistakes but ultimately he ended our relationship when he went in search of someone else instead of working on our relationship. It still hurts but I am learning alot. I loved him deeply and dearly and still miss him and think of him from time to time. He was in the process of a divorce that should have been completed within 90 days. He did not complete the divorce and lied to me about stupid things. I guess he felt things were moving too fast . I put the relationship "on-hold" till he could complete his divorce and he retaliated by finding another girl whom he got engaged to within 2 months of meeting. He still is not divorced but seems to be very much in love and I am the one crying over this man. I did what I thought was right at the moment but I was the one who lost in the end. He was a wonderful person....everything I wanted in a man - except married. I just wish I would have been patient. Any advice on moving on?