This is a quiet piece, but it trusts the reader more than most quiet pieces do. The theme is not announced too loudly; it is carried through restraint, small gestures, and what the story chooses not to explain.
The strongest part, for me, is the control of detail. The writing understands that a small physical action can carry more weight than a direct statement. That gives the piece a sad, precise texture without making it feel sentimental.
My small nitpick is probably tied to the one-page constraint. Some of the emotional beats feel slightly compressed, especially around the dialogue. I think the story is strong enough that a little more breathing room between exchanges would make the impact cleaner.