[Edelgard starts walking immediately, letting him choose his own pace. He's the Professor, certainly, but he's not...no...this is so strange.]

...Did you choose the Golden Deer, or the Blue Lions? That seems to be the point at which our timelines diverge, based on accounts with the others.

[It's so bizarre, and it's an unfair expectation placed on Byleth. But much of that that is on Rhea, a fact she's recently become aware of.]