I agree that this is about the speaker trying to break up with his significant other. It sounds like he is trying to psych himself up to do it ("Maybe one day I'll get through", "trying to be strong", "I guess I'll go and tell you just as soon as I get to the end of this song").
She has already let on that she suspects he doesn't love her, but she loves him and doesn't leave ("Your poor little heart already knew, but there is nothing you can do"). That is such a terrible position for her to be in, feeling unloved but still staying with him. She has probably confronted him about his lack of love and he just denies it, so she stays hoping he actually loves her.
He tries to convince himself to tell the truth by telling himself that it is a small step to tell her ("I only need to say its true"). If she asks again, all he needs to say yes instead of lying.
I think the repetition of "to the end of this song" and the following verse are him rehearsing in his head. He is saying I'll tell her as soon as this song is over, but wait the song has another line, and another. I'll do it now...ok now...ok now... Then in his head he tells himself and her that he never loved her. It is just the curse of his life of lonerism / social awkwardness that he will be alone again, it isn't her fault that he is leaving. But this is all in his head.
This is confirmed by the last verse (repetition of the first). All he gives are little clues, he didn't actually tell her. And the whole song can repeat from there, since we are back at the beginning. He will try again to tell her, but there is nothing he can do. Maybe one day...
I agree that this is about the speaker trying to break up with his significant other. It sounds like he is trying to psych himself up to do it ("Maybe one day I'll get through", "trying to be strong", "I guess I'll go and tell you just as soon as I get to the end of this song"). She has already let on that she suspects he doesn't love her, but she loves him and doesn't leave ("Your poor little heart already knew, but there is nothing you can do"). That is such a terrible position for her to be in, feeling unloved but still staying with him. She has probably confronted him about his lack of love and he just denies it, so she stays hoping he actually loves her. He tries to convince himself to tell the truth by telling himself that it is a small step to tell her ("I only need to say its true"). If she asks again, all he needs to say yes instead of lying. I think the repetition of "to the end of this song" and the following verse are him rehearsing in his head. He is saying I'll tell her as soon as this song is over, but wait the song has another line, and another. I'll do it now...ok now...ok now... Then in his head he tells himself and her that he never loved her. It is just the curse of his life of lonerism / social awkwardness that he will be alone again, it isn't her fault that he is leaving. But this is all in his head. This is confirmed by the last verse (repetition of the first). All he gives are little clues, he didn't actually tell her. And the whole song can repeat from there, since we are back at the beginning. He will try again to tell her, but there is nothing he can do. Maybe one day...