Mai goes to thank Toph for her help.

"I don't know what you did, but it worked. I'm glad he has a friend like you."

Toph feels like throwing up. Mai doesn't suspect her at all. Mai should be screaming at her for having an affair with her future husband; not thanking her for helping him.

She turns her back so Mai won't see the tears welling in her eyes.

"Meh, It was nothing."

"What happened to him last night?"

"Long story." She shrugs. "Maybe he'll tell you about it some time."

Mai sighs. Zuko doesn't tell her anything anymore.