Aang brings his arms up, crossing them over his head in an attempt to shield himself from this question....but he answers it anyway, because this is Toph. Not only is she one of his best friends, but...arm-shields are just no match for her, and he knows this.

"Okay, so...when I got here I'd just been hit by Azula. So I..."
He sighs.

"When I met with Guru Pahtik and he helped me clear my chakras, and he told me that the love for my people never left the world. That...that because love is a form of energy, it doesn't get destroyed, it just changes forms. And when he explained this to me, in my mind...all of my people. My entire Nation. They...they disappeared before my eyes into a cloud of smoke that...that turned into Katara.

That's why I quit training, even though I couldn't control the Avatar State. Because...I had to save her.

And then I woke up here. And she was here. And Zuko was here. And everything was different and just out of sync."

He's quiet for a moment, before he starts speaking again.

"After we defeated Malicant, and we were all in the dreaming. I don't know how much time passed, but...I lost track of Sokka and Katara and found myself at the Southern Water Tribe. With Korra. She was going home, and after seeing the Stupa that's there in her time, I knew I had to go too.

I managed to find Katara before I went back under Ba Sing Se, and I kissed her goodbye. And then...then...life happened. And we were on Ember Island and I told her things and she said she was confused and I didn't understand then...but I do now.

She was confused because she was in love with Zuko too. Only I didn't know that then, and so I kissed her and she got angry.

Is this making any sense?"