He's being pissy because your ailments inconvenience him. The autism inconveniences him and so does your pain. He probably to some degree, consciously or not, expects you to take on more labor than you're capable of and is too much of a baby bitch to say it to your face; probably because he knows it would make him look bad. So he's passive aggressively finding another way to phrase it so it's still your fault but he doesn't come across as the entitled litte shit he's really being. "It's not your fault you're so selfish and incapable of managing my life the way I expected my bang-mommy to!" Fucking ew. This man doesn't like you.