Before the poem begins, it hands us a rule: «Never say diary.» The title sounds like a stern bit of advice, and it hints at why the word is banned. "Diary" suggests a small lockable book of crushes and secrets, while "journal" sounds more serious and more grown-up. That reading is an inference, but the four lines that follow seem to prove the title wrong. Whatever the speaker calls the book, he treats it with all the intimacy a diary implies. The poem is funny because it protests against softness and then admits to it.
The first image is "a lone shoe," and it carries a lot. A single shoe on the roadside is something that has lost its partner, and it is a little pathetic. A shoe is also a thing made for walking, scuffed by use and shaped over time by the person who wears it. The metaphor says two things at once. The journal is half of something, and it is also worn and familiar, carrying the marks of the speaker's days. The word "lone" matters here. It suggests the speaker's solitude as much as the book's.
The next two lines pile on new definitions without any verbs: "a little wife / a better ever after." The speaker seems to keep revising himself, as if no single comparison will hold. "Little wife" is affectionate and a bit condescending. The adjective shrinks her into something small, quiet and available, a listener who never answers back. The journal has taken over a role from a household, doing a wife's work of absorbing complaints. Then comes "a better ever after," which twists the fairy-tale ending "happily ever after." The comparative "better" is the surprise. It could mean the journal is an improvement on marriage, or only an improvement on the lonely alternative. The phrase also quietly echoes "better half," and the poem lets that echo hang. "Ever after" promises permanence, and a notebook can claim it more cheaply than a person can. Pages don't leave, and they don't argue.
Then the last line drops all the sweetness: "to which I bitch." The grammar is oddly formal, since "to which" belongs in a legal letter, and it is followed at once by a slangy verb. "Bitch" here means to complain, but the word is also an insult usually aimed at women. Coming right after "little wife," it makes the reader uneasy, and I suspect that is deliberate. The speaker's picture of the ideal listener is a bit unflattering to him, because it shows someone who wants a partner to receive his grumbling and nothing else. The poem doesn't say whether he knows this. The sound does some of the work too. "Which" and "bitch" rhyme, so the line snaps shut on a rhyme inside itself, like a door slammed.
The construction is lean. There is no punctuation and no capital letter except the pronoun "I," which makes the speaker's ego stand out from the lowercase lines around it. Counting syllables gives seven, four, seven, four. That alternating pattern pairs the lines off, which is a neat irony in a poem about a lone shoe. The poem itself comes as a matched set, even while its speaker feels unmatched. The rhythm helps the joke. "A better ever after" runs in a smooth, almost sing-song pattern of unstressed and stressed beats, like a line from a bedtime story. "To which I bitch" is blunt and clipped, and it undoes the lullaby.
What makes the poem worth reading is how much it packs into so little space. In sixteen or so words it gives us loneliness, marriage, gender and the odd comedy of confiding in paper. It also catches a small truth about keeping a journal. We often write because we want a listener who is patient, always present and unable to object. The poem's central idea is that a notebook can become a substitute for a partner, and that this substitute is both comforting and a little embarrassing. The title's command not to say "diary" then reads as a nervous joke. The speaker wants to keep some dignity, while the poem shows him giving it up one line at a time.