[Rui feels a little like a fish, with his mouth open but not knowing what to say or how to say it. At first, all he can come up with, as he clutches Eren's hand, is,] Thank you for telling me. [Because it can't be an easy thing to talk about.

Looking down at Eren's fingers, though, he runs over everything that Eren has said, even the most terrible parts. Even the things that make his stomach drop. Then he manages to meet Eren's eyes again.]

You have too much humanity to ever lose it all. [Maybe it sounds trite, but...] After listening to you talk, that's what I believe. [Rui says it with conviction.]