It sounds like you wanted pre warning that x could happen in the game which is fair but baring some NSFW stuff it's it assumed that anything can happen in a typical dnd game? You failed a roll. It impacted the story. That is the game.
I feel like I'm missing something. The become resilient part feels like it didnt happen because the DM ret conned the moment. I'm not saying you would have been stronger if not for the ret conning but you would have likely been less impacted by the same event happening in a future dnd game. Even with the ret con you're likely to be less impacted by the same event.