"you" is a short love poem of gratitude, spoken to someone who accepted the speaker at their lowest point. Each of the four lines says something this person did: they loved the speaker "at my worst," promised a forever, healed what was hurt, and made the speaker new. The steps build on one another, moving from acceptance to commitment to repair to a kind of rebirth.
The speaker sounds thankful, relieved, and a little amazed. The simple, repeated "you" at the start of each line puts all the focus on the loved one, almost like a list of gifts. The final image, "your sunflower," is the warmest touch. A sunflower turns toward light, so it suggests the speaker now faces this person as their source of warmth and growth. The word "your" also shows belonging and trust. The mood is gentle, tender, and hopeful, though the mention of hurt hints at pain that came before. The odd space before the semicolon after "forever" is a small quirk that gives the promise a slight pause.