[For far too long, meeting you has been all he's cared about. All he's wanted. And he expected a much more different outcome - a fight, maybe, that he'd lose spectacularly, where he'd be witness to your true powers before his inevitable demise. He had decided to put his life, his death, in your hands (or so to speak)... So how could he possibly mind it? Anything you want to do to him, it's fine, as long as it's you who does it]
[He smirks a bit, not quite looking up]
Then maybe you can do it even while there's no wound to heal.