[Oh no, they even behave the same. That's why Revali says aloud, as if he was talking to himself but very clearly intending for Flat and also Flat to hear it]

This cannot be. This party is doomed to turn into nonsense because somehow there are two of you.

[He had thought after that game and after encountering Flat after Chasma, Revali could handle anything Flat could do, but right now he sure feels back to square one. It's unlikely he'll get used to it before this party ends]

Promise next time we encounter there won't be three of you. Or more.

[He's alright with Flat, all things considered, but talking to him needs more energy than he wants to casually use]