If anything, it sounds more like a guilty conscience.

[Yuan turns to give the stacks his full scrutiny, and to make sure he doesn't give himself away. He doesn't think he'll lose control of himself, but it's very tempting to be smug.]

[Smug has no place undercover. When Yuan turns back to Zelos, empty-handed, he has careful interest down to an art.]

It's better that he isn't asking about me, in any case. Has he -- or anyone -- said anything directly to you?