"Oh." Oh. Admittedly, it's one of the better answers to that question - less painful, and hey, Esteban's doing what he likes, right? Tidus looks appropriately sheepish, his gaze awkward as it dances around, not sure where to settle.

"I just...wanted to know you were sure. --Sorry," he adds; because he has no right to be bugging a guy about it, but he can't help it. Gaze finally returning onto Esteban, if lacking the knowledge of what to say next.

(Probably, 'well, let's go!' would be good.)