Ernest Tubb's song "One Sweet Hello" tells the story of a bittersweet love affair. The lyrics describe a relationship that was once filled with happiness and love ("Together it was heaven"), but has now come to an end. The phrase "One sweet hello and one sad goodbye" reflects the short-lived happiness experienced by the couple. It signifies that their love story began with a hopeful and pleasant encounter, but eventually led to a painful separation. The lyrics also mention the loneliness and heartbreak that the narrator is experiencing after the breakup ("Two empty arms and these lonely nights to cry"). The memories of their time together continue to haunt the narrator's mind, even though they are no longer together. The song emphasizes the significance of the little moments and gestures shared between the couple, suggesting that these small things were cherished and held great meaning to them, even though they may not have any tangible value. Overall, "One Sweet Hello" portrays the fleeting nature of love and the impact it can have on an individual, leaving them with cherished memories but also deep sorrow.