Summary Of Somnambulism

The story Somnambulism is about a young man named Althrope, who is presumed to have shot and killed Constantia Davis after her and her father leave his family’s house in a rush after receiving an urgent message, however Althrope may have been sleepwalking at the time. In the beginning of the story Althrope is so consumed with his love for Miss Davis that he did not want her and her father to leave his house, he feared that because Constantia was engaged he would never see her again, and if he did see her she would likely be married by then. When Mr. Davis and Miss Davis are preparing to leave, Althrope becomes paranoid and filled with anxiety that something horrible will happen to them if they leave, so he tries, but ultimately fails, to convince them to wait until the morning to leave.
I found it interesting how the narrator’s tone changes from the start to the end, in the beginning the narrator is deeply depressed that the woman whom he had just met, but claimed to love, had left him never to be seen again, but at the end of the story he says “Why should I dwell on the remaining incidents of this tale? She languished till the next morning, and then expired.” This final sentence is interesting because the author starts the story with Althrope being distraught at the fact that the woman he loves is leaving and it is uncertain as to whether he will ever see her again, which sends him into a depressed state, but at the end he poses a question to the reader as to why he should dwell on the situation, then proceeds to say, in a perceived indifferent tone, that the woman of his affection laid suffering all night and died the morning after being shot. Why would the author show such contrast in Althrope from the beginning to the end? Could it be that Althrope was jealous and acted