That last part is much too relatable. No matter that Inigo was the one who gave Tidus that advice in the first place, he too is an absolute expert at kicking himself over past actions he can't change anyway.

But maybe that's why he should help Tidus out by not focusing on what's already done, but what can still be done, right?

"Why don't you get her a gift? Something--" Romantic, he almost says, but he's not sure Tidus is ready for that level of teasing in this mood, so Inigo quickly swallows the word back up. "-- meaningful? If you two are from the same world, you could get her something from back home if you've got the points for it. I'm sure she'd understand the intention and feelings behind it."