Oh, that's too bad. I don't mean to belittle your situation, but maybe it's for the best. Sometimes things can get pretty bad at work when a work relationship goes sour (happened where I used to work) and it's unpleasant for everyone that works with those two people. But, hey, who knows, maybe it will work out in the end...don't fixate on what happened and just move forward. He just may come to his senses!