It would seem you have 2 options.

If this were me, I would choose not to fuel his immature, unprofessional, and overly emotional outburst. I'd reply with basic, concise, language... ie:

Sir, please consider the order cancelled...etc.

or

Sir, please ship to this address the following items... etc... please confirm rect. of payment... etc.

Life's too short for that sort of crap.

.