Both Victor Frankenstein and his creature are lonely. Frankenstein has never been surrounded by many people and his creature is fated to be lonely because of his appearance.
Victor Frankenstein has isolated himself from his peers in his pursuit of knowledge. Yet his loneliness is most poignant after the death of Justine Moritz. Frankenstein knows that the creature killed William, but he chooses not to say anything, “Did anyone indeed exist, except I, the creator, who would believe, unless his senses convinced him, in the existence of the living monument of presumption and rash ignorance which I had let loose upon the world?” By identifying himself as the creator, Victor is separating himself from everyone else. Although he is anguished just like everyone else in his family over William’s death, he does not let himself tell them what happened in Ingolstadt or who really killed poor William. As a result, he becomes distant, “solitude was my only consolation-deep, dark, deathlike solitude.” Even when his father and Elizabeth try to reach out to him, he shuns them because he feels that he does not deserve their love. At this point in the novel, Frankenstein is very troubled and wants more than anything to be a part of his family, but cannot stop feeling guilty over the deaths of William and Justine.
Just as his creator is lonely, so is the creature. Throughout his short life, many people have run away from the creature and have left him alone. However, the creature truly got to know the French family in the cottage. He came to love Felix, Agatha, the old man, and eventually Safie. It was through their English lessons with Safie that the creature even learned to talk. As time goes on, the creature yearns to be a part of the family, “The more I saw of them, the greater became my desire to claim their protection and kindness; my heart yearned to be known and loved by these creatures; to see their sweet looks directed towards me with affection was the utmost limit of my affection.” The creature watches them from outside a window wanting desperately to be a part of the scene that he looks upon every day. In his loneliness, the creature decides to reach out to the family, but this ends in violence and horror. The creature is shunned by the family because of his appearance and again he is alone, "My protectors had departed and had broken the only link that held me to the world." The creature had dared to hope that he would be accepted, but he was wrong. As a result, his loneliness intensifies and at this point in the novel, he resolves to search for his father.