Interesting question... In chapter 5 the reader and Victor simultaneously begin to contemplate the gravity of Frankenstein's actions. The duality of Frankenstein's thoughts about the monster's looks suggests uncertainity. Frankenstein's creation is starting to take a toll on his conscience, he is physically exhausted, has dreams consumed with the monster, and is unable to escape the mental anguish he is beginning to harbor. Chapter 5 is the moment that Frankenstein realizes that there will be consequences for his actions, a revelation he cannot change nor escape from.