Despite its title, "goodbye" feels less like a farewell of sadness and more like a quiet thank-you. The speaker looks back on a person who gave them smiles and made their heart "flutter and squeeze," a pairing that captures both the lightness of happiness and a small ache inside it. Nothing in the poem tells us exactly who this person is or why they are parting, so the relationship stays open: it could be a romance, a close friendship, or something that simply ran its course.
The final image carries the most weight. The stars disappearing into the sunrise suggests a night giving way to morning, which fits the idea of something ending naturally rather than being torn apart. The mood is soft, grateful, and a little wistful. The short lines slow the reading down, so it feels like someone speaking gently, taking their time to say what matters before letting go.