There's a moment- a brief moment, when Kuvira mentions feeling hollow and lonely- when her composure fails, when a flash of genuine pain and anger reaches her face. It's the faintest slip, covered immediately, but it doesn't matter. She's certain Kuvira would have noticed.

She tries to preserve the facade, though she's not certain why she's bothering to perform for this woman. Finally, at the mention of Korra, she sneers.

"Irritating though Korra may be, I certainly don't loathe her. Trust me, if you'd met the last Avatar, you'd prefer this one as well. I humored her for lack of any better occupation, since I missed all my sitting engagements by a few decades. I can see now that it was a waste of my time."

She takes another sip of tea, sets the cup down, and stands.

"Thank you for the tea."

With that rather disingenuous dismissal, she turns and starts walking toward the door.