Then I'll have to make him understand somehow! How about this?

[He said before using his hands to 'eat' away the bugs that were buzzing over his head. Using the ends of his fingers to be teeth, he made extra chomping sounds to make sure he got the point across!]

You must be hungry at some point, wouldn't you like some really nice bugs to eat? I promise I'll be your bestest friend if you ever did!

[...Much to how annoyed Patamon looked right now]