I told him it was over. I cared more about my own health than his little project going nowhere, it had been a few months almost a year I worked with him and it had seen no real progress, no consideration for how to handle updates, no website, nothing to advertise it, only vague and empty promises of a launch.
So I left. I had enough of his attitude, including the dismissive way my injury was handled but not limited to it. I could be insulted and screamed at for recommending an hardware platform because he realized too late that there's a problem with it. I could be praised one day then shouted at the very next, for the exact same reasons.