I'm a librarian who loves anime, manga, and reading a wide variety of genres.
It's been far too long since I last reread many of the Discworld books, but I think this might have been the mushiest Vetinari has ever been. He noticed the hand-holding and mentioned it out loud (and not as some kind of verbal weapon). Also, his soft spot for Glenda's baked goods is kind of adorable, which is a word I didn't think I'd ever use to describe Vetinari.