I find this paragraph is very confusing to understand, it is from IMDB synopsis of Good Will Hunting (1997) movie.
Sean points out that Will is so adept at anticipating future failure in his personal and romantic relationships, that he either allows them to fizzle out or deliberately bails in order to avoid the risk of future emotional pain. When Will then provides a whimsical reply to Sean's very serious query of what he wants to do with his life, Sean simply shows him the door. When Will further tells his best friend Chuckie (Ben Affleck) that he wants to be a laborer for the rest of his life, Chuckie becomes brutally honest with Will: He believes it's an "insult" for Will to waste his potential as a laborer, and that his recurring wish is to knock on Will's door in the morning when he picks him up for work and find that he just isn't there, that he has left without saying goodbye. Chuckie's honesty hits home with Will more than anyone else's, even Sean, a trained professional.
So Please explain this paragraph.