In Chapter 24, why does the monster suffer over Victor's death?

At midnight on the evening of Frankenstein's death, the creature steals into the ship to view the body of his dead creator. He utters exclamations of grief and horror, but moves to escape when Walton walks into the chamber. Walton asks him to stay. The creature, overcome with emotion, says that Victor, too, is his victim; he asks Frankenstein to pardon him for his crimes. Despite all that has transpired between them, the creature still harbors love for his creator. I suppose, despite everything, the creature has a soft spot for his creator simply because he was his creator.