Edward often listens closely to what Sigmund is saying- it's why he used to fuss over knowing what he says to anyone, even if it doesn't involve him. This time, though, he's much too busy reeling over the fact that Sigmund just patted his head. His. Edward's. It was even halfway affectionate.

Does Sigmund even know who he's talking to?

"My lord, you... you're home." Hesitantly, "Our house in Luceti. Do you remember it?"