This song is just a simple, yet beautiful apology and is applicable to any person that's ever been in a relationship and may now be wanting to apologise to their ex after realizing how they might have (knowingly/unintentionally) hurt them when they were together.
A beautiful and amazing song by a wonderful artist that proves that her songs aren't always about the same thing, and that people should just give ms. Swift a chance and listen to the emotional depth and sincerity of her voice.