WEll I'm going to play devils advocate here and be the troubled roll,

now first off I understand everything you did and you have every right to be pissed at this guy, but I would also like to make a few points in his defence, since this really seems to be unpopular to side with this guy

first of all, your relationship with him spans 10 YEARS , this is not a minor friendship he has obviously been a big part of your life, and yes he cares about you and fantasized about you, friends often have that happen when your so close to each other, but personally if I had to take a guess I'd have to say he had his ego bruised with your repeated rejections (not saying it was bad to reject him) that he defended himself by attacking you personally, again not the right thing but not everyone responds in the most logical manor when hurt.

Second of all, I must say that although that single insult may have hurt it seems a little extream to throw away a 10 year friendship over it, I personally, and I know this is gonna be a really unpopular opinion think it was rather cruel of you to cut him outta your life over it without a word to him, you never discussed how hurt you were, you simply banned him from your life... a ten year friend who stuck up for you and took beatings for you and with one single misspoken line outta anger you cut him outta your life without so much as a word to him,

I don't find it strange at all that he is attempting to gain some form of closure , desperatly trying to get you to talk to him, I mean you never even gave him so much as a chance to appologize, I'm sure sometime in your life you have done something you regretted in the heat of the moment.

so while I agree with everyone that what happened was certainly in bad taste, I also agree that you yourself have handled it badly, I mean a ten year relationship shut down over a single line without so much a goodbye or giving him a chance to redeem himself, I mean hasn't 10 years earned the guy a second chance??

I'm sorry if I'm the only one who sees the need to point out that things could have been handled better instead of offering pure support, but I don't think problems are always solved by being a Yes Man.