To be honest, the one who's talked the most about you is Ven and Sora.

[And he remembers the conversation that Sora had with him, about how Ventus and Vanitas had their own issues they were dealing with. And how maybe all Vanitas needs is some patience and understanding. While that's mostly Sora's natural optimism, Roxas can see the value in the words.]

I'd rather learn about you from you. Others can talk, but I'd rather see it with my own eyes.