Hey, you don't have to tell me twice. [Except for the part where he's avoiding telling Tadashi certain things and he wonders if maybe that would count as a regret. But that's something to dwell on in private later.]

...he's great. He's a total nerd and sometimes he tells really lame jokes and he has this weird overfondness for cardigans but he's my best friend. It's been just the two of us and my aunt since I was really little, so I guess we're kinda close. ["Kinda" in that for a while Hiro was pretty much glued to Tadashi. Down the steps and off the bridge and to solid land they go.] He's actually the one who made Baymax. I made his armor but the original programming and body were all Tadashi's work. I think even you'd have a hard time being mean to him.