The Monster is the Creator?

It is possible that the monster is actually Victor Frankenstein, or rather a figment of his imagination. It's odd to me that thus far, no one else has seen him. And when Victor meets him for the second time it just happens to be in his hometown at the sight where is brother was murdered. Perhaps he would be there if the monster truly murdered William but what motive would he have? And if murdering is just what monsters do, it is extremely unlikely that his first victim just happened to be Victor's brother. If Victor is the monster, the story comes together more clearly. He was frightened and ashamed of his creation because when it was brought to life, it's Victor's realization of his Oedipal feelings. When William is murdered, Victor is truly the murderer. Unconsciously, he murdered William because he stood between Elizabeth's attention. After his mother died, Elizabeth took on the role of the mother in the household and William the son. With William out of the picture, Victor and Elizabeth could have a better chance of a successful "union".