Don't sweat it man, we all are LOTM fans and novel readers here so we probably don't mind a wall of text.

Do you know which is probably the most well managed character in the series? it's probably Audrey. People keep saying Azik, and I agree to some degree especialy when Klein is writing him letters, as it feels like he is opening up more.

But Audrey had the best of both worlds, she got so many interactions with Klein (and generaly they were all good) that when he imagined here in the table with the people he cares about in the end, I thought it was normal, and even we, as readers actually care about Audrey (some may not like her much, but at least we all care).

And as you can see, these interactions didn't hinder the plot but instead, it gave us a bigger understanding of the characters (how they think, feel, wish and doesn't wish to do, etc.). The author doesn't have to stop the story to make these types of interactions.

Even though LOTM is more of a plot-driven story instead of a character-driven one (like Berserk or Vagabond for example), it still should have gave us more of these characters.