The speaker believes they have moved on from someone they once loved. They haven't thought about this person in weeks, maybe days, and they even admit they sometimes push the memory away on purpose. Then someone else mentions the name, and the whole effort falls apart. Tears come, and the speaker realizes they were quietly counting the days until the ache would stop.
What follows is an argument inside the speaker's own head. One side repeats that bad men don't change and that the love was never real. The other side, the heart, begs the person to stay. The final stanza tries to settle it by calling the relationship a fairytale the speaker invented. Because they say "I am not yours, you are not mine," the poem suggests it may never have been a proper relationship at all.
The mood is raw and sad, but also stubborn. The uneven punctuation and broken lines make it feel like thoughts spilling out as they come, half-convinced and still hurting.