This is a lovely reminder that, as well as being amazingly cute, Hannelore is also a great friend and a thoroughly nice person. I'm pretty sure that it's taking all of Faye's mental and emotional strength not to break down into tears and hug Hanners because she knows that the combination would freak her out.
Now, I wonder if this is a redrafting of a note Jeph penned to himself back in the day? He doesn't have a Pintsize to toss but I'm sure that he has plenty of (nonbreakable) free merchandise samples that would do the trick!
I've got a feeling that the Veronica, Marten and Claire arc is heading into heavy territory. Posting as a fan-fiction writer, I understand the anxiety when your plot is about to take you into controversial territory that will not be liked by all your readers. We
know Jeph doesn't like going there.
Sorry, what does "but you do you" mean?
Hannelore is saying that Faye can do whatever is truest to her essential nature and that she doesn't mind.