At the aiport they kissed.
"Last call for flight 813231 to Massachusetts."
He broke the kiss off, and stroked her hair. "Thats your flight."
"....I could miss it."
"Katara," he thought back over the past years of highschool. She'd worked hard for this. "You want this, you've sacrificed so much and worked so hard for this."
"So?" She smiled peevishly-almost looking like she would throw her whole future away for him.
But Zuko could see through that. He pulled out of their sweet embrace and placed his strong hands on her shoulders. "You will go to Harvard and study to become the greatest doctor their ever was. We'll still be strong. You will come back for the breaks and still compete in any surfing competion you want to. I know you will." Zuko smiled.
He stated and blessed everything for her. They both were unsure but courage pulled him through to tell her what they both knew.
Yet Katara was still timid. "You think?" She asked him.
"Yes." He simply said.
They kissed one last time before she ran and boarded her plane.
Katara knew she would miss him, miss everyone, miss everything he did and was for her. But she sure would miss his electrifying kiss.