One of the most important things I got out of al-anon is that there may not always be neat closure, I may not always understand the "why" of things. I turn it over to my Higher Power and pray for acceptance for whatever it is I have to accept, I can tend to obsess on things and go over and over them in my mind and al-anon has taught me to change that obsession to prayer, and prayer helps me to change it to acceptance.
I am sorry you are hurting, but I also think that he most likely did you a favor in the long run.