There is a lot to unpack there. First- "A phar- So that's why..!"- despite himself he has to allow himself a brief interjection of surprise, memories of his failed possession attempt hitting hard. Hurriedly, he shakes it off. "...Mnh. It's irrelevant now I suppose..."

Particularly with what else is on the table.

He doesn't deserve that kind of offer, it feels like. It's almost too good to be true. He can't say he especially liked the other after all- well, he can't even say he truly knew him. Yet there Seto stands, offering...

This. "...why?" He manages, confusion written upon his face. "...I am the one who..." He pauses, searching for the words. "...Yugi, and 'Atem', I think I can understand," he corrects- "...But I tried to kill you. Everyone, even," he adds with the shake of his head.

"...Why would you offer that...Why..?" He repeats somewhat dumbly, unable to make anything about the confusion seem elegant.

It's clear he wants it, certainly.

It's just not clear to him why the chance is already there, that quickly.