The narrator is confused because it its unclear why does he live in a shabby home.
<u>Explanation:</u>
The civilian that the author is talking about in the passage had been retired from the service of the Hussars at a very young age of thirty five. Even though he settled in a wretched and a little village, still the life style he had was extravagant.
It was not clear to the people living in the surroundings that why was he living in such a shabby place. At his home, champagne flowed like water and the officers of high post of the regiment used to come for dinner. Even after this, he always used to be dressed shabbily so it was very confusing for the people living in the surroundings.
"Usher rose from a sofa on which he had been lying at full length, and greeted me with a vivacious warmth which had much in it"
In this line, Usher's behavior of rising from the sofa to greet the narrator is a sign of friendly hospitality even though it seems as he rarely gets up from the sofa. Also, the narrator describes his greeting as vivacious. Vivacious means full of life and energy. This is in complete contrast to what we learn about Roderick Usher.While Usher is glad his friend has come, he is not full of life or energy.
