I cant remember what the name of the song is called?! HEELP!!?

i cant remember the name of the song and its driving me insane. its a very old song probably 200 9 ish but it has a girl shes pretty tall wearing boots and shorts, and she was singing about her boyfriend( who is now a ex ) in the music video, and shes on her laptop and she writes "hate you" something like that, and i think shes playing the guitar... also she has his picture on the wall and she rips it apart.... PLEASE HELP!!!