It's been a few years since Shining Armor retired, longer since the birth of his daughter, and longer still since his marriage to Chrysalis. He's an old pony, older than most, but that doesn't stop him from loving life and loving his wife. Age waits for nopony, though, and it catches up to the best of us.
A/N: This technically takes place in the same universe as good-end True Love Never Changes, though you don't really need to have read that to get this. This is a possible future based on the good end, and may or may not be considered canon as you feel suits you.