Country promise kept

Write original country-style narrative lyrics about a small promise you quietly keep for years. POV: first person. Structure: [Verse 1] 8 lines; [Chorus] 4 lines; [Verse 2] 8 lines; [Chorus] 4 lines; [Verse 3] 8 lines; [Final Chorus] 4 lines. Constraints: clear timeline; simple rhymes; one object motif repeated (a worn key OR a folded note); avoid clichés like dirt road or cold beer; no brands or names. Include [your favorite theme] as a central motif.