That moment of silence is intensely awkward, and he refuses to look back until those next words make him whip around, eyes widening then narrowing. Bastard. That is completely unfair. And for a second all he can do is stare at him.

"What? You ran out of your own arguments so you have to use mine?" Excuse him if he's not going to be especially cooperative with that, considering he still doesn't fully understand what Eiji was thinking even if he's accepted it at this point, and he wouldn't even know where to begin trying to explain it in reverse.