Gee. Tell me what you really think!
I can't even believe someone said that. Even if you think it, use your filter! Hopefully he'll learn from this experience and think of how his words can really hurt.
He's lucky he didn't say it to me. I would've probably punched him (or kicked him in the). Then (knowing me) I would've followed it up with a comment like "At least there's treatment for my illness. There's nothing you can do to fix your uglyness and stupidity. Nobody could stand to be around that! ***hole."
(actually, i wish he would've said it to me, rather than you. NOBODY MESSES WITH MY ostoMATES
He's probably mad that you could find someone to stick by you through thick and thin and he'll never be able to hold on to someone like you have.