I'm sorry to hear that, not sure if I can offer advice of how to combat it, I am Bipolar and it's fucking shit, can't agree more, I think he needs to own it and realize doesn't give him nor anyone a treat people like shit, or be dick, or gaslight free tickets, I always know when I have been an asshole most times or def afterwards or if my SO says hey this or that, or typically I am always second guessing myself more than they are, and def willing to hear them out and apologize and take accountability, so I'm sorry but , he isn't ok to do this like at all and needs knock it off to be blunt, bipolar yes it a disorder , but no way does it give someone the right, like still need to take personal accountability , be mindful and kind. Be responsible for their actions, bottomline, just as if they were to commit a crime, just because they had bipolar or something doesn't mean they could get away with it, that's going alittle far in another direction I know but you get my point I think, and maybe he needs to seek therapy or new meds. Darling I wish you luck and him!