Honestly, this is the first 8 chapter prologue that wasn't spoiled by the first chapter and thus didn't suck. Props to the author for doing this, extremely well done.
I’m also a little disappointed Walter didn’t stay. But I also think it was rather realistic. A lot of other series make these kind of characters somewhat subservient to these types of MC’s and overly accepting of a person that does “bad things with a good purpose”. But Walter was tired of that shit and wasn’t going to deal with it after having such an experience of betrayal and a broken heart. See ya space cowboy