He does speak something familiar that pulls at her heart even if she's never heard of Westeros. Claire listens quietly, wondering if Jamie would explain things similarly to a stranger if he were here. That thought does nothing to make the ache in her chest go away.

So, while she's heard it all, she focuses on something else he said.

"A parley? You do have the look of a soldier to you."

And maybe that means he'll be all right when it comes to adjusting.