The changeling Vinyl Scratch goes to Canterlot High. He befriends both Shining Armor and Cadance in one, and the next, he's dancing with Cadance. Oh did I mention that the male changeling is in a female body?
A change of events, a change in lifestyle. As life progresses for Vinyl and Octavia, one learns the simplicity of life, and one treasures what she already has.