First break up post divorce

Why is this break up hitting so hard? For context I’ve been divorced 3 years. I asked for the divorce and my heart was detached 2 years before I left (his addiction and abuse was too much to keep dealing with). Anyway met this guy and dated for only a couple of months and he said all the right things, we had a great time, and boom! He broke up with me. Didn’t give a straight reason and frankly I’m done wondering why. I’m not going to rotate myself like that. What surprises me is how hurt I am. Anyone experience this? What did you do to move forward?