[It's hard to answer this. Even in his short time here, Aang's had some great memories. Just the blissful simplicity of living in one place with most of the people he loved the most was something he'd want to remember. Not to mention all the fun times he had through the people he met here. He tried very hard not to think of how happy Suki was when talking about the wedding.

He gave a sigh of resignation.]

Yeah. She... won't remember all of that, either. But... she's still going back to a world at peace. There's still a chance for so much happiness back home. [This would be a bad time to bring up Yu Dao.]