I am having difficulty to find an appropriate topic for an essay on "No One's a Mystery," any clues?

In writing your essay on "No One's a Mystery," I would
first suggest that you pay attention to this very short story's
title.

In studying the title, a reader can often find
direction in discerning the author's intent for writing the
story.

The fact that there is a diary is important in that
it's a five-year diary; is the fact that it won't open symbolic? Is there foreshadowing
with regard to the stubborn lock and also the narrator's use of the book in five years?
Jack has a clear idea of what he thinks will happen, and what will or will not be in the
book.

Our narrator is very observant.  She notices the
bleaching of Jack's jeans and the wedge of manure--does this detail speak to you?--in
the heel of the boots he has worn in the two years he has known her.  (We learn from
this description that this older guy has been seeing the narrator since she was
sixteen.)  His car is a mess, and in trying to hide her from his wife passing in her
car, he pushes her onto the floor where her jeans get dusty and she is face-up against a
stinky ashtray.

If I were to write an essay, I might write
about the narrator, and whether or not you feel she should look elsewhere or follow her
dream of being with him.  If so, I would speak to how he treats her, and what he really
has to offer her.  There is alcohol and sex, but she's really just a kid--even he admits
it.  Is there a future for her here? Does he believe there is a
future for her here?  Look to the last line that refers to the smell of mother's milk as
being bittersweet.  He must have children.  How does he seem to feel about this based on
his statement? (And remember that children are a part of her dream.)  Does he seem
enthusiastic about buying into the dream?

If you feel there
is more evidence in the story to support another viewpoint, you could describe Jack, how
he looks at life, and where he thinks his life is going?  Does he
see a bright future? Is he still alive with wonder and anticipation as the narrator is?
 How do you know?

Either topic would be acceptable because
there is enough from the dialogue and the descriptions to support your point; supporting
examples for each main point that supports your topic are absolutely necessary in order
to get the best grade.  If you prove your point of view with facts
(details from the story), your "take" on the novel is as relevant and accurate as
anyone's.  Just don't skew what you read into something it's not in order to "make it
fit."  I tell my students that unless the story talks about outer space and creepy stuff
happening, don't try to tell me there are aliens.

Also,
state your point of view clearly in the introductory paragraph. Give a clear conclusion
where you do more than restate your introduction (e.g., what does it all really mean?),
and don't put new details in the conclusion.  Good luck!