Sunset Shimmer has a crush on Twilight but knew she couldn't love her because Twilight is in a happy relationship with Timber Spruce. When she heard that Timber got into an accident, she quickly rushes to the hospital and the doctor told her that he needs an A+ blood and a heart. Sunset immediately volunteers because she remembered how Twilight looks sad and was crying because of what had happened to her boyfriend. So she sacrifices her own life.... for Twilight to smile again.