Ah yes, this all sounds very familiar! i remember having all of those same thoughts especially "I hate that he thinks I abandoned him." I knew BEFORE I kicked him out that the relationship might very well suffer, I might even lose him forever, and that he would direct all his rage right at me. I never sought him out, but I did respond when he was ready to spew venom at me... I stuck to the truth of the situation (didn't accept responsibility that wasn't mine), didn't get drawn into a fight, reminded him that I love him and always will, and ended the conversation when it was clear it was going in circles. Eventually he stopped calling. After 2-3 months he called one day and basically said, "Ok, I'm over it now. Wanna have dinner?" Pretty cool.