billd91
Not your screen monkey (he/him)
The thing is, the DM has to prep something or there’s no game to play. Whether that something is a collection of scenes, situations, plots, or locations (ideally, a mixture of all of them) doesn’t really matter as long as the players choose how they interact with them (including choosing to not interact directly).Alas, this is what comes of thinking agency means the freedom to investigate your story. Rather, agency consists of player decisions actually driving play, replacing GM-authored backstory. Instead of what you decribe above, which consists at best of Participationism (ie, a tacit agreement to follow along with what the GM has cooked up), consider not prepping a story in advance in favor of following PC interests and actions to allow a shared experience to emerge that truly builds from what the players want to do/find interesting (ie, agency).
Even agency starts at a point of accepting certain premises for the campaign. And one of those is the DM has material he’s willing to prep. If a player isn’t willing to exert his agency within that boundary, there’s no game.
I don’t see anything particularly wrong with your setup even if the paladin player misread your intentions. Sometimes miscommunications and miscues happen. Maybe you could have telegraphed a little more about the shadiness of the situation. Gatekeeping important information behind mercurial dice can bite you in the ass. The fact that the paladin player didn’t think intervening was an option is a little troubling. Maybe discussing how he got that impression would help diagnose any communication problem.