This is one of the few sad songs I can listen to without negatively affecting my headspace. It's got the perfect blend of sentimentality and resolving to move on.

(And I relate to the story, to boot.)

Dean Lewis - Be Alright (Acoustic)
https://open.spotify.com/track/5JvHFo8DB7qgbGHnF5iAKU
https://youtu.be/pxbliRH9Hs8
https://invidio.us/pxbliRH9Hs8