I think these lyrics have to do with someone suffering the loss of someone they loved; perhaps this person died. I don't think it was a break up because the girl is still watching over the person she left behind. The instruments bring to mind a guy alone in his house, stuck in his head because he lost this girl (No matter what you think you did wrong, she knew she had to go along) and she's standing at his shoulder in the form of a ghost. Does this make any sense to you?
I think these lyrics have to do with someone suffering the loss of someone they loved; perhaps this person died. I don't think it was a break up because the girl is still watching over the person she left behind. The instruments bring to mind a guy alone in his house, stuck in his head because he lost this girl (No matter what you think you did wrong, she knew she had to go along) and she's standing at his shoulder in the form of a ghost. Does this make any sense to you?