Dealing with a Friend Who Fakes Disorders

I’ve been wanting to ask a community for awhile. This does talk about faking disorders and stuff so just a warning. My boyfriend had a friend, that I became friends with, diagnosed with schizoaffective disorder (which isn’t horrible or why I think he’s taking these actions). Then that friend heard about me (diagnosed) and my boyfriend (suspected) having DID. Then he claimed to have it. I didn’t want to doubt him so I tried to believe him for about 6-7 months. but none of his symptoms matched with anything that DID causes. When I told him nicely that it didn’t sound like DID and he should reach out to a professional, he changed it to OSDD but it doesn’t match up with that either and he didn’t see a therapist. (His current therapist is cheap and just took him for his words that he was diagnosed with the disorder without looking at his prior paperwork). He lied about a lot of stuff that just wasn’t adding up to other things he was saying (like not related to what wouldn’t match in DID, like being financially secure or not that’s a simple bank account check, Or if you have a host with the name that you chose as a trans man, or like an alter is fronting but says their own name like they aren’t, X: “I was best friends with X growing up.”) He even eventually said that his system was “his career of choice.” He promoted that you can “create” a system by just pretending that you have a “little guy” in your head. He’s had alters like die die. It’s just a lot and I had to stop seeing him. He was clearly getting worse mentally and physically but believe he was feeling great. For example, he was so disconnected from reality anytime we were not talking about something he likes, he would just continue as if we didn’t change the topic or add something into the conversation that didn’t make sense with the current conversation. Some of the voices in his head are aggressive and convincing him to do dangerous things like traveling to a different state where he doesn’t know anyone to visit people who he knew for less than a month. He was/is convinced they are his soul mates. I couldn’t handle it. And I can’t believe him actually having it especially since he’s trying to educate people on the disorder and none of it makes any sense with what you go through with DID/OSDD I’m not against people suspecting they have DID/OSDD but he wouldn’t listen to anyone who was trying to be kind and help him (people who were not saying he was faking it but saying maybe to rethink making videos as if you were an expert when you just found out you were a system and haven’t seen a professional). We haven’t talked to him or about it in over a month but it’s still constantly on my brain and I can’t let it go because he is posting videos on YouTube and tiktok “educating” people and trying to teach people on how to “create” a system. And as someone who wants to make content just for fun and not to actually have my disorders be a main focus, it makes me upset he thinks of it as a game/career and it’s fun all the time and tough system stuff goes away after a week. It also makes me upset he’s not caring about the misinformation he spreads. Before the DID stuff he tried to claim having my physical disorder but he shows no signs of it. I just don’t know if I’m the bad guy and I’m being too judgmental.. I don’t know if I’m thinking too much about it and just need to move on and ignore him. But ignoring him seems wrong and dangerous for him (because I do really care for him) and for the communities of my disorders. Help…