[He gave a wry smile at that.] I get that. I'm gonna miss my summon actually. I never fought with her or anything like that, but she was a companion that never scorned me when my family were all being jerks. Well, more than any cat would that is.

[Katon got more petting here, and he looked at the ponyta for a moment before he started to walk again.] Every being you encounter is their own personal creation, and no two will ever be just alike. But, well, that's a -good- thing. It means that you'll always -care-.

As for the heart thing... I dunno. In my family it's all about emotion but... that's not the same thing exactly, and it's not the whole -world-.