I think that Jetforson concluded with this statement because he wants to make sure that nobody breaks their promise to support and live by the declaration. I hope this helps you!
Answer:
The author intends for the reader to reflect further upon the husband's inner life and emotions.
Explanation:
The text presents a man who receives a romantic and very sentimental letter from a young woman who loved him. This young woman died and this man was married to another woman, who does not seem to have the same emotion towards him. The last paragraph reveals that the man is sorry for not having had a romance with the author of the letter who seemed to truly love him. For this reason, he lets out sighs of memories, making the reader reflect on his previous life and the emotions he had.