Tidus listens with earnest attention, not catching onto any double meanings--the phrasing innocuous, and he can understand that sentiment with any of the others he personally travelled with. Often wondered why him, instead of them? Though, only because with him...

"I'd love to meet her then," he says, grinning into that wish. Leaning back slightly on his arms behind him, eyebrows throwing up in Inigo's direction. "She sounds like a hero like you! But if she's more serious than you... I can't imagine! You're pretty serious yourself."

Maybe someone with a face like Light's. A blue-haired Light! What the train could do with two of them.