[He hears that quiet huff and there's a small smile on his lips for an answer, despite the situation and everything. And it's perhaps that that gives his tone more bravado, a kind of half-optimistic confidence that wasn't there before.]
Hey, if all goes according to plan, then he won't change at all and the only thing you're responsible of is being the one who defeated him, so be prepared for everyone's congratulations and thanks.