In the story, "The Black Cat" by Edgar Allan Poe, how does the narrator feel about what he did to the cat?

The narrator makes it plain that he loves animals and had wonderful relationships with the many that he kept as pets until alcohol and his addiction began to destroy his life. He grows increasingly annoyed at Pluto, who had previously been his dearest pet. At one point, he grabs the cat in a fit of demonic rage (encouraged by drink) and cuts out one of the cat's eyes. He is completely broken up over the incident and notes that he "burned" and "shuddered" when he remembered the "atrocity."

He felt so guilty that he eventually hung Pluto so that he might place his soul "beyond the reach of the infinite mercy" of God. His remorse was so great that he felt he ought to damn himself.