He continues to watch the two carefully, the frown not dissipating. The questions straight-forward enough not to rustle him, so-

"Tidus, eighteen, about-" He pauses, brow furrowing with his frown as he has to think. "I dunno... seven, eight missions? Gyueran, Terra, Irivar..." He mumbles under his breath to remember.

"Eight or nine months," he finally comes to. "Since that voidcraft picked me up."