Ok spend - first things first. Remove your upper case, because in internet terms, that is yelling.
Second, take a deep breath and try to relax. It's not the end of the world and it will be ok.
Next, block that bidder from your acutions. Do that immediately!!!!!!!!. You have done the right stuff so far. This is a real shame for you, I know. My opinion is that you should never have responded after your explanation of your terms. If they refuse to transact business the way you do things, then there is nothing more to say and nothing worth saying to the malcontent.
This person will be GONE soon, don't worry. If ebay doesn't act fast enough, perhaps you can appeal to them for a full refund of listing fees because they didn't remove the maniac in time. If he has another ID, maybe you can pull his his contact info and see if it's the same information.
If you have to pull your auctions then do it. It's better than having them won by a freakshow and losing FVF.
Keep us informed to what's happening, kiddo!!
Jackie...