Dude, you're ****ed. Dealing with girls is not the same as dealing with guys. It's not like when your buddy spills a beer on you and you call him a "****ing fagot!" Then he laughs and you're pissed. There's no word in the english language that hurts someone the way "cunt" hurts a girl. There are two things you can never call a girl that you are with: 1)cunt, 2)whore. And you nailed them both. All you can do now is apologize, but something like that can never, NEVER, slip out of your mouth again. Honestly, if I were you, I'd really hope that she has no brothers or a dad that would kick my ass. Because if someone said that to my sister, I'd imagine I was three again and play tee-ball with your ****in body and my favorite bat.