Incredible atmosphere, especially supported by the great music. The dialogue hits almost too close to home lol.
With a more refined visual style, and maybe a bit of non-linearity amongst the conversations, this could make for a great narrative focussed game.
As for the jam theme, I actually interpret it a bit deeper than just the next conversation being the thing behind the door. Rather, the ulterior motives or toxic behaviour that "friends" can expose when they find someone vulnerable, those traits normally hidden behind a "door", or the usual face they present.
Good stuff, thanks for the experience.