These lyrics drive home the futility of unrequited love. You can make the person 'rue the day', you can hurt them horribly, you can make them feel like shit, and you can tell them you hate them -- but at then end of the day, they won't come back to you.
What is beautiful about this song is that the futility covers each end of the spectrum. Even if you wrote 'the sweetest song you ever heard', they would not return. Or alternatively, if you hurt them, it will still do nothing.
These lyrics drive home the futility of unrequited love. You can make the person 'rue the day', you can hurt them horribly, you can make them feel like shit, and you can tell them you hate them -- but at then end of the day, they won't come back to you.
What is beautiful about this song is that the futility covers each end of the spectrum. Even if you wrote 'the sweetest song you ever heard', they would not return. Or alternatively, if you hurt them, it will still do nothing.