"Yeah, see?" Tidus can get down with someone following the logic of absolute confidence = absolute victory! It's certainly put a spring to his mood to have Inigo be agreeable. "No one wants a face full of claw no matter how much experience they have, but if we both act smart, we'll get through it. I'll watch your back, and you can watch mine!"

And maybe they can try and figure out if there's any more details to go over, but before that: "I'm Tidus by the way. I don't think we exchanged names before. Buuut, it feels like forever since that day," he admits sheepishly.

It's totally possible he just forgot...!