Ice Cream bound friendship. That's why Roxas was so broken up about who else he'd eat ice cream with when Xion went back to Sora. Axel mentions earlier in the game how they're best friends because they eat ice cream together.
There are characters...ones you've grown up with...and you might forget about them sometimes, but they're always there, inside you. And every so often, you remember, and you smile, because to me they're real. And to me we grew up together. I will always treasure those characters, those moments.