The four quatrains above are verse 1, chorus, verse 2 and verse 3. The chorus/refrains repeats after each verse, of course. See Peace's link, above, for the tablature, which is fairly accurate, maybe a little oversimplified.

This lyric just might be the most deeply depressing (or depressed?) expression of unrequited love ever put to music.

And the music is a fairly sprightly, cheerful-sounding melody. Well, I suppose that's just John Smith Hurt in a nutshell...