Tidus tries to mull over it, but this isn't exactly the best place for it, and he already knows the end result: one giant mess of a headache for him. How was he meant to guess the motives of a train ... person/whoever that didn't even say hi to them?

So with the short-lived expression of reflection, Tidus sighs, folding his arms before himself.

"Guess we'll never know 'til whoever's running this feels like sharing it." Disappointing, but Tidus wasn't going to let his mood sour, tugging on a smile even after a beat. "Anyway, I should let you get back to your special someone. Let's enjoy the the rest of the day!"