I don't think this song is about things falling apart at all. In fact, I think it's about things that haven't started yet. The narrator loves someone and knows that that person loves them back as well. They're trying to show them that you can't hide or deny your feelings, you just have to take the plunge. I gather from it that he's basically saying: look, we both love each other(these feelings don't happen by myself/yourself), we can't live without each other(breathing don't happen by myself/yourself), so let's be together(we could love, we can love).
I don't think this song is about things falling apart at all. In fact, I think it's about things that haven't started yet. The narrator loves someone and knows that that person loves them back as well. They're trying to show them that you can't hide or deny your feelings, you just have to take the plunge. I gather from it that he's basically saying: look, we both love each other(these feelings don't happen by myself/yourself), we can't live without each other(breathing don't happen by myself/yourself), so let's be together(we could love, we can love).