Eight short lines, and "you" fills nearly all of them. It gives the poem its title, begins four of the lines, and turns up again inside two more. The speaker, by contrast, slips in almost unnoticed. The first "I" is tucked inside the contraction "I've" in line three, and a plain "I" only arrives in line seven. Without being told anything, we sense who holds the power here. Amy's poem is about being affected by someone else: a person who has stirred up a flood of emotion, and who promised a change the speaker never quite believed in.
The first stanza opens like an accusation. "You're the cause / You're the reason" is the same charge made twice, and the near-synonyms give it the sound of a case being built. These are cold, logical words, though, and what they lead to is anything but logical: "That I've been feeling / All these feelings." The verb and noun share a root, so the speaker goes round in a circle, unable or unwilling to name the emotion. "All these" suggests there are too many to sort out, and the present perfect "I've been feeling" tells us the feelings haven't stopped. The poem never says whether they are love, anger, hurt or all three. The second stanza suggests disappointment is among them, but the first leaves the rest open for readers to fill in.
Then the grammar shifts from blame to regret. "You could have changed / You could have been different" repeats the opening pattern, but "could have" is the language of roads not taken, of something possible that never happened. The word "different" is as vague as "feelings". The speaker lists no faults and no incidents. Judging by the text, this reads like shorthand between two people who already know the history, with the reader overhearing the end of a long argument.
The last two lines carry the poem's real insight: "But I never thought you would / Even though you said you could." The difference between "could" and "would" is the difference between ability and willingness. The other person claimed the first. The speaker doubted the second. "Even though" is the sad detail, because it shows the speaker's doubt came before the failure and in spite of the promise. Disappointment arrives twice, once from the person who didn't change and once from the speaker's own lack of faith. The poem also ends on the other person's words, "you said you could," so the final note belongs to a promise rather than to any answer.
Sound is handled quietly. Most of the poem doesn't rhyme, which makes the one true rhyme, "would" and "could," stand out. It arrives at the very end and closes the poem with a small, neat click, almost like a verdict, in contrast to the untidy emotion around it. The echo of "feeling" and "feelings" works differently, as repetition rather than rhyme, and it makes line three seem to stumble into line four. The lines are short and the rhythm is plain speech. The first stanza's lines are only four or five syllables long, as if the speaker can manage only blunt bursts. In the second stanza the lines stretch out a little, as though the speaker has found the breath to explain.
There is almost no imagery in the usual sense, with no weather, places or objects. The vocabulary is abstract: cause, reason, feelings, different. That could look like a weakness, but here it works as a strategy. With no decoration to hide behind, the repeated "You're" and "You could" do all the work, and the poem sounds like something said or written in one sitting, before the speaker could polish it.
The poem's significance lies in how much it gets from so little. Pronouns show who is in control, the modal verbs "could" and "would" hold the whole story of a broken promise, and the repetition shows a mind going over the same grievance again and again. Many readers will recognise the situation: someone says they can change, and part of you has already decided they won't. The poem offers no forgiveness and no farewell, only the moment of sorting out what went wrong, and that unfinished quality feels honest.