Do I love you?

"Oh, I'll show you lightning!" Azula starting her form, lightning beginning to form at her fingertips, Zuko was plenty calm. Zuko said he'd be fine, Azula was slipping, so why did Katara suddenly feel like things were about to take a turn for the worst? The lightning came out, but Azula was cunning and directed it away from Zuko, toward the waterbender in the background. He saw Azula's change and for the first time in his life when he looked at the waterbender he saw fear in her eyes, he knew how important she was to him and suddenly felt so protective as he jumped in front of that lightning strike.
"ZUKO!"