The poem "What Love Isn't" has a few lines about movies and songs. The particular lines 17 through 19 in the poem are "good sometimes. It is discomfort — it is not what the films say. Only songs get it right."
The poem refers to love not always being a five star stay (first sentence) and that it is a solid thing but not always sweet. The reference shows that real life love can have an unhappy ending and there is a conflict in real life and with movies it is always happiness and love conquers all. So many songs do tell the story of breaking up, sadness, and real emotions.
The theme can of the poem shows that love is irregular, it is difficult, and will always be a surprising part of life.