Be it grass, fruit, or beasts, whatever you eat, you have to live its part.

I don't think there is. I can't talk to Pokémon when they're in the PC or in a pokéball. I can't even talk to them when they're in an egg, even though I can do that with birds back home. They're different somehow.

I don't know what else to try, other than taking him out every few days and asking him to explain why he wants to stay in the PC. Maybe he'll tell me eventually.