He wasn't the jealous type. Or at least he thought he wasn't.

But seeing you being ogled by all those men made something inside Zuko burn.

So he grabbed your arm and took you out of the party, a protective embrace.

"Zuko? What's wrong?" You asked.

"Nothing. Let's go home, okay?"

He says, too ashamed to admit his insecurities were taking a hold of him.