As mentioned earlier, Gatsby's argument with Tom revealed that he had earned everything he had through illegitimate means. Tom points out, "'He and this Wolfshiem bought up many street pharmacies here and in Chicago and sold grain alcohol without a prescription'" (143). This changed the reader's position on Gatsby. The reader now realizes that Gatsby is a crooked individual who will do anything to get ahead. The reader also realizes towards the end of the story that Gatsby was completely absorbed in his obsession with Daisy. Gatsby confirmed his obsession to the reader by admitting, "'I waited, and about four o'clock she came to the window and stood there for a minute, then turned out the light'" (157). Everything Gatsby did was to impress or convince Daisy. However, Gatsby's pursuit of Daisy is irrational because she has already said that she would not leave Tom for Gatsby. Gatsby intends to recreate the past, even though it has become clear that Daisy and Gatsby will never get back what they had in Louisville. The narrator adds: “He wouldn’t think about it. He couldn't leave Daisy until he knew what she was going to do. He was clinging to one last hope and I couldn't bear to let him go. (158). By the time of his untimely demise, Gatsby had become a shady, obsessed, and unreasonable man.