I'm learning that I'm responsible for the outcome of my actions. While you did not deserve the response you received, your request to remove your e-mail address from his address book prompted his reply.
A non reply would have ended the interaction and caused you less pain. Even better, hitting the delete button and choosing not to read his e-mail would have caused you no pain at all.
The more recovery I get under my belt the more I can forsee and thus avoid actions on my part that invite chaos or unpleasantness into my life.
I'm learning that it's best for me if I think before I act.