The three parts of the self according to Freud’s perspective is the individual id, ego and super ego. This need for desire, approval happiness for the self may not be good for the society at large. Each individual has a certain amount of inbuilt aggression in them owing to these complexities of the relationship between the id and the super ego. This varying degree causes the individuals to act in a certain manner. The formation of the self is developed from the infantile narcissism by a process of digression. According to Freud any individual has an innate desire to be satisfied and be happy. Generally Freudian perspective is pessimistic. This however cannot come from the individual self. This need of approval and love should come from another individual for the self to be happy. Freud attributes the origin of this feeling to be connected to the infant stage of the individual. At this stage the infant needs a stronger person to approve and take care of them. They need love unconditionally. Freud says that this innate need of each individual is the origin of the oceanic desire.
In the movie Gone girl, Amy actually seeks out the approval of Nick during the party. Nick was fulfilling her desire and her need of being loved and love. Nick on the other hand was actually seeking out validation of his self by having affairs with another woman. In this scenario it can be seen that both the individuals have an innate desire of fulfilling the super ego and validation. This super ego image of Amy was shattered when she finds Nick with another woman. She goes back to the emotional stage of the infantile narcissism as her infant need of approval and love had been shattered. Infantile narcissism is the culmination of the super ego where each individual gives utmost importance to only his or her needs. She seeks out revenge in the most unusual way and in the end ensures that he does not leave her at any cost. Nick also does not leave her because of his need of wanting to be acceptable member in the society. He needs society to validate him. She needs him physically with her and it does not matter to her if Nick loves her or not. She is basically holding him as hostage in an unusual way and that is similar to a child holding in to a doll. In this it is pretty obvious that Freudian theory of infantile narcissism and desire determines the action of Amy.