[ She frowns slightly, though it's not because of the quip at her friend. She'd made her ply to the Regent in an attempt to divert attention or to get him down, unsuccessful though it was. It does seem that either the Regent won't--or can't do more and wouldn't want everyone to make note of that.

But what it is is a clear diversion tactic and attempt to dig at her and her priorities. Expected, if they're to be enemies, even if she does feel guilty about not being able to free him.

Still, she spares at glance up at Estinien. ]

...He's stronger than the Regent wants to give him credit for. I won't risk endangering him further.

[ And shifts her gaze right back to Kaeya. ]

You didn't seem alright just a moment ago.