Applejack tells a concerned Rainbow Dash that she should just see if she and Soarin would be a good couple once she becomes a Wonderbolt, much to her regret for having feelings towards the rainbow maned pegasus.
Applejack realizes that time goes by fast, and that it was a blink of an eye since she met Rainbow Dash until the time her best friend became a Wonderbolt. Now, all the farm pony wishes is that she could go back and tell her feelings.
Maybe, just maybe, things will work out for Applejack though..