The name definitely makes Jean freeze a little, since he also heard it wrong. Especially since it could have and should have been Marco rooming with him, not this random guy. He quickly snaps out of the shock and nods in confirmation, but his hand is definitely in a fist behind his back.

They're dismissed, free to go find their rooms at their own pace. Jean focuses his back mind on the mission mindset. Conceal don't feel.

"Once we've settled down for a while, should we meet up and share our thoughts?" Neutral term, as if they're just friends who want to share what their new places and roommates are like.