Lyric discussion by xoxofitzgerald 

Cover art for Clean lyrics by Taylor Swift

The entire album tells a story, starting with Welcome to New York and then ending with this song. The entire time she's been going back and forth with one guy, but then one day she lets him go. The "secret messages" or whatever for this one is SHE LOST HIM BUT FOUND HERSELF AND SOMEHOW THAT WAS EVERYTHING and I think that just adds to the power of the song. It's raw emotion and it's beautiful. It closes the album perfectly, and on a bittersweet note. Utterly flawless

I haven't heard anything to back up whether 1989 was a concept album, but this is certainly an interesting observation. I've gotta listen to the album more carefully. :P