Taylor Swift is not shy about the fact she writes songs about her ex-boyfriends. You can't really blame her since most country songs are written about real life experiences and Taylor's just happen to be dating at this point in her life.
You can't tell me that some of Kelly Clarkson's songs or Reba's songs aren't about ex-boyfriends/ex-husbands. Now they may not be as public about calling them out like Taylor Swift has been, but they still have meaning.
I guess I didn't realize how many ex-boyfriends Taylor had but here's the current list of Ex's and the rumored songs that came from her different relationships.