She was unusually quiet and... contemplative. Her eyes flicked up towards him - as if she could see him. Her face was calm and... a little sad?
"You still haven't figured it out yet, have you?"
"Figured what out?"
She sighed. He suddenly wished he'd said something else. Anything else. Anything that might have made her smile... or made her mad. Anger was better than the sad disappointment that was evident on her face now.
"Forget it" she said, and turned away. He reached out to her and took a step.
"No, wait!"
"What?"
"I'm sorry" he said. He wasn't sure what for, but it seemed like the right thing to say. "I'm sorry. Can't you just... tell me? What is it that you want me to know?"
She turned back, eyes cast downwards, hiding behind her bangs.
"Do you really want to know?" she asked.
"Of course."
"I... I love you. I always have."
He was shocked into silence as she turned and walked away. In the doorway she turned and said "Goodbye, Sokka."
And then she was gone.