I think that this song is about a guy and a girl who were in a relationship before, but she might have "smothered" him or maybe he wasn't faithful, or maybe he just broke up with her and she eventually moved on and fell in love with another man. But then the original guy realized that love stays with him and he realizes he made a mistake and never treated her right. But now it's too late and he can't do anything about the fact she loves someone else. He's amazed because he never thought at the time that he would be "reading through lines of love and fear and apologies"
I think that this song is about a guy and a girl who were in a relationship before, but she might have "smothered" him or maybe he wasn't faithful, or maybe he just broke up with her and she eventually moved on and fell in love with another man. But then the original guy realized that love stays with him and he realizes he made a mistake and never treated her right. But now it's too late and he can't do anything about the fact she loves someone else. He's amazed because he never thought at the time that he would be "reading through lines of love and fear and apologies"