[ Korra pulls on the clothes he passed towards her in record time. The shirt says Luceti University (and is probably getting burned later) but it'll do for now. When what he says sinks in she rounds on him. ]

What's the big deal? [ She repeats slowly and deliberately. ] What's the big DEAL? [ That, not so slow and deliberate. ]

The big deal IS that you've already seen it! Zuko, all of this is a big deal! [ She looks sort of panicked, now. ]