So, here's what I'm betting: use of the word "disappointed" at least twice. General tone will be cool, with an air of pride. He will not attempt to woo me back at all. There may be at least one line that could be considered shots fired, meaning he might suggest he will take action if his website or archives are degraded at all. I bet he'll say something about this being unprofessional that it happened in email and I could have at least given him the courtesy of a conversation. I bet he will say "I wish we could have talked this out."