So much of there stuff is about relationships, and I think this is about one that went wrong. They got together because they were young and liked each other, but then he realized that he doesn't really need her (I'm pretty sure those lines all have "don't" in them).
So, at first, he's trying to make the relationship work but then it just becomes too much/not worth it. So they split up, have to deal with the pain, and move on, putting the relationship behind them.
So much of there stuff is about relationships, and I think this is about one that went wrong. They got together because they were young and liked each other, but then he realized that he doesn't really need her (I'm pretty sure those lines all have "don't" in them).
So, at first, he's trying to make the relationship work but then it just becomes too much/not worth it. So they split up, have to deal with the pain, and move on, putting the relationship behind them.