That dialogue flashback was supposed to be a series of strips.
I wanted to show Shining Armor at the Academy, as he resist the increasing pressure from Captain and some of his classmates (but has one understanding friend that Spike apparently met in canon).
I wanted to show how Silver Spear is working against Princess orders, because he believes she “lost the touch” with the military. And how Shiny starts to believe that Cadance can marry only a high rank officer to avoid mésalliance, making his next decision even more difficult.
Finally I wanted to show how Shining Armor decides to transfer to another school and giving up his ambitions of advancing in rank, but saving his integrity. And the very same day he is about to quit the school, Spike accidently sends Twilight to the hospital, making Shiny feel responsible and “proving” that Silver Spear was “right”.
As it stands, I didn’t feel inspired to draw it anymore, and prefer to focus on the present.