"Please make sure to abuse that offer, Kitty."

It sounds much lighter again. Maybe a bit too light, considering Inigo's tone from a moment ago, but he really wants to move on from his own awkwardness, from misunderstandings and hurt. And with things having been pretty much resolved, it's a lot easier to put on his usual lighter tone again.

Even if it involves some gentle teasing towards Tidus, even in tone.