The Lone Jew.

The diaphragm finally drives them apart, or is it really about the diaphragm?
Neil is obsessed with the idea that someday Brenda is destined to leave him, thus every signal is acutely observed, and his emotion is forever reserved, in case he might really get hurt.
He feels for that black boy, and Patimkin's poor brother Leo, since their lives in a way mirror his. His observation of these two people are into every detail.
And his fear of Julie and Mrs. Patimkin, oh that's just classic. They represent the part of the elegant life that he can never penetrate through.
For a while he tries to create a bond with Ron and Mr. Patimkin, by listening to Ron's "music" and talking with Patimkin. He even tries to please Mrs. P.
Yet to what end? Nothing really changes. The family's toleration for him only lasts as long as he keeps a distance from them.

The Jewish young man is at a loss, he belongs to nowhere, no time.

As to the title, full of poetics and melancholy, signifying nothing... you know what I mean.
Written in 1959, this is a work with plenty characteristics of that period. So I don't have to analyse what was quite obvious.