I think this song is about a boy and girl breaking up and trying to make it alright in the end. "I tell you it's not your fault" is the guy saying it was my fault and I'm sorry, and the song overall is the guy thinking that it's all better in the end and they're better without each other.
I think this song is about a boy and girl breaking up and trying to make it alright in the end. "I tell you it's not your fault" is the guy saying it was my fault and I'm sorry, and the song overall is the guy thinking that it's all better in the end and they're better without each other.