Wow... that was really harsh. And you're right, very mean.
Don't do these verbal/text battles anymore. Be done. Don't do this to yourself or to him.
Walk away with grace... don't worry about him any longer. Don't analyze if he "still wants you"... its DONE. Leave it there.
He asked you not to call anymore. Don't. Don't text. Don't call. Don't try and find out about him. Be done with him. Really. Its not worth hurting yourself or him any more than you both already have.