To me this song is about a long term relationship thats going south, yet they have been together so long, and are just ignoring all the signs (hence redlights going unseen). or in denial that they are fading apart. Its like she wants to move on or is searching for something more in her life but her fears are keeping her from actually doing anything about it (her broken legs won't let her walk away). He doesn't understand why she isn't happy, and what she thinks she is missing (what are you looking for, are you looking for something more?) and he is telling her with (its not me) that if you keep searching you will eventually realize that its me that you aren't satisfied with. (or i can't be what you want me to be.) Then sounds like the 3rd verse she tried to leave him and said she was going to stay with a friend to clear her head and figure out what she wanted. Then the "where did it all unwind" he is reflecting on where they started losing it, cause at one time they were so happy and he doesn't understand how it has come to this. and with the "are you prepared for what you'll find" is saying that if she looks close enough it will be obvious that that they're relationship is dying. because he is not who she wants him to be...and he won't ever be.
To me this song is about a long term relationship thats going south, yet they have been together so long, and are just ignoring all the signs (hence redlights going unseen). or in denial that they are fading apart. Its like she wants to move on or is searching for something more in her life but her fears are keeping her from actually doing anything about it (her broken legs won't let her walk away). He doesn't understand why she isn't happy, and what she thinks she is missing (what are you looking for, are you looking for something more?) and he is telling her with (its not me) that if you keep searching you will eventually realize that its me that you aren't satisfied with. (or i can't be what you want me to be.) Then sounds like the 3rd verse she tried to leave him and said she was going to stay with a friend to clear her head and figure out what she wanted. Then the "where did it all unwind" he is reflecting on where they started losing it, cause at one time they were so happy and he doesn't understand how it has come to this. and with the "are you prepared for what you'll find" is saying that if she looks close enough it will be obvious that that they're relationship is dying. because he is not who she wants him to be...and he won't ever be.