It's a question he doesn't know how to answer for a moment simply because it's so far away from how he feels. Tired, of Souji? It's a preposterous idea, like being tired of sunrises, or of breathing.

"You were always with me," he said, not tired, but grateful. "I don't care much what everyone says, you'll find. And as such, I'm not sure how you'd think I could get tired of you."