What is the creature's reaction to Paradise Lost? According to the creature, how is he both similar and different from Adam?
In his reading of Paradise Lost, the creature discovers the concept of creation. He comes to know that God created Adam ... and gave him Eve so that he would not be alone. Because the creature is not a creation of God, at least not in the sense that Victor is God's creature, he does not have the same relationship to God. Instead, he sees Victor as his God, his Father, his Creator. Unlike the creations of the "real" God, the creature sees himself as the one, the alone, created but not loved. His life is miserable, as would the life of the original Adam have been; so he asks for the same solution that God provided for Adam --- a partner, someone who could love him, someone he would share his life with so that he would not be so totally alone. Here the creature's story differs from PL. Victor starts creating a mate for him, then stops, leaving the creature totally alone, alone to wreck havoc on a world that does not love him, and in which he will never be allowed to find love.
Remember that I am thy creature;
I ought to be thy Adam, but I am rather the fallen angel, whom thou
drivest from joy for no misdeed. Everywhere I see bliss, from which I
alone am irrevocably excluded. I was benevolent and good; misery made
me a fiend. Make me happy, and I shall again be virtuous