Fine, then I'm worried he'll stick in place more firmly where he is.

["Now that Jaskier isn't here". Huh. That's new information to Grant, and... okay, not all that personally upsetting given his own opinion of Jaskier, but evidently he and Kazuki were friends.]

Look, whether or not Kazuki is lonely isn't where I disagree - I can take your word for that. But I really don't think this is the way to change things.