“Why are you doing this?” “It’s the only thing I know how to. If you were me, wouldn’t you?”

it's a jOKE AND DONT READ IT IF YOU'LL GET OFFENDED.

Zero has had feelings for Kaname for a while. However, Kaname only thinks of him as a pawn. Damn it Kaname. No character death, slight gore (vampires), you will not be hurt by ending (or your money back).