I've always thought this song is about depression. Possibly it's a little more detailed than that - maybe depression caused by loss. There seem to be a few references to love in the song, so that could be it, or it could be about realising that you've been lied to, hence the line "think back before you started thinking about the things you were sold on." The second verse is a little more positive and upbeat - I think the second part of the verse: "in love there's no need to worry etc." is another voice, either a different character or a different part of the persona's mind, telling the main persona to hold on.
I've always thought this song is about depression. Possibly it's a little more detailed than that - maybe depression caused by loss. There seem to be a few references to love in the song, so that could be it, or it could be about realising that you've been lied to, hence the line "think back before you started thinking about the things you were sold on." The second verse is a little more positive and upbeat - I think the second part of the verse: "in love there's no need to worry etc." is another voice, either a different character or a different part of the persona's mind, telling the main persona to hold on.