Answer:
Im not sure which lines you are referring to but these lines make it gloomy:
"Once upon a midnight dreary"
"Thrilled me—filled me with fantastic terrors never felt before;"
"Deep into that darkness peering, long I stood there wondering, fearing,"
How his house changed while he was gone, how some people were not as loyal as he thought they were
If you spoil someone you treat them with great or excessive kindness or generosity.
If you pamper someone you indulge them with a great deal of attention and comfort.