I have a friend relationship now with my daughters Father (my first husband) though it only took about 15 years for that to happen.
In fact he invited me to stay at his home last year when I went up to settle my moms estate. My daughter was living there at the time. We talk mostly about our daughter but sometimes its more personal. He is currently remarried and very happy.... Even though there are still issues I still hope he is happy.... btw he is not in recovery.