Why Is the Body Missing Within the Narrative?

Alex hears a joe say nonsense about the body and alix decides to jump to the conclusion that the body is missing. Alix's writing as a way to make every piece of information conform to his narrative But none of it's real. It's all completely imagined in his head I mean and and I chose letting him do it. Alex: "The price to entry for bigs is to play a game of improv with me"