It seems to me that it is about falling in love with someone who seemed great at the time, but then things didn't work or went to hell for some reason, ("did you plan this all along?") and now she can see all his faults clearly, and it seems like he's not as unique and perfect as she thought ("you devil undercover, you're not a prince, you're not a friend") I think the song shows that she cared for whoever the song is about (she says, "pray for me" and "do I need you? Yes and no") That's how I interpret it, anyway
It seems to me that it is about falling in love with someone who seemed great at the time, but then things didn't work or went to hell for some reason, ("did you plan this all along?") and now she can see all his faults clearly, and it seems like he's not as unique and perfect as she thought ("you devil undercover, you're not a prince, you're not a friend") I think the song shows that she cared for whoever the song is about (she says, "pray for me" and "do I need you? Yes and no") That's how I interpret it, anyway