UPDATE: How do I (28F) convince my boyfriend (28M) to seek professional help?

Original post
It didn't get a lot of attention but a lot of good things happened and I want to hype!
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Right after posting, I got in touch with a cult expert. Our counselor had suggested that, off the record. He wasn't a part of a cult but the expert agreed he needs some HC deprogramming. We were sure he wouldn't agree to talk to him, so he advised me how to approach this just to open that door. Told me to be stern and try to discredit his ex, the self-help guru to discredit the bull**** she fed him. So I sat him down and we had a very hard conversation. It was actually a monologue that dragged on for what felt like hours. At points it felt like he would fall apart but I kept going.
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Last night I reminded him he got that scar on his elbow cause he nearly died saving someone's life and she turned that into something shameful. Ages ago I had stage 3 melanoma, she all but called me a moron for going through surgery and chemo instead of trying natural remedies. She stands against the treatment that saved my life. For all we know right now she might be convincing someone they can cure cancer with herbs, like she was making him to go through cluster headaches without any medication. She's dangerous and did very bad things for his mental health. She had him convinced "only strong people seek help" is a lie fed to us by shinks cause they want our money. I reminded him she said he was the most damaged person in the world and quit her job to focus solely on him, while spending most of the time away from him, traveling off his pocket. He almost lost his best friend, lost both his parents, suffered a traumatic brain injury, went trough months of rehab, suffered the symptoms for another year and managed to survive all that. He was the strongest person I have ever met and only wanted to find some meaning in life, but she abused that and convinced him he's weak for her personal gain. I pointed out I could turn a blind eye and keep living this charmed life, but his wellbeing is far more important to me. I said I want my best friend of over 2 decades back and that can only happen if he talks to someone. I also told him I'm afraid that if he keeps waiting on my hand and foot, one day he will start resenting me and that's the only way he could ever lose me.
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This conversation happened in the bedroom, he went to bed without saying a word. I wasn't sure if I was welcome there so I fell asleep on the couch, he joined me during the night. This morning something miraculous happened! I tripped all over myself, nothing new there. He didn't jump to my rescue, didn't spitfire if I need help with this and that, he teased me! He teased me for the first time in 4 months! We had this very bantery friendship and it stuck when we started a relationship. When he was triggered into regressing to the person she made, he was too terrified I would leave him if he did something like that. I was beyond happy and jumped his bones. He said if this is a treat for good behavior, he will have to do it more often. He made a joke! Then he said he will speak to someone and we set up an appointment in 2 days. I offered to join him on his first session, he said he will try to do it on his own, but might take my offer. This is huge! At least this morning he wasn't walking on eggshells out of fear I will leave him and he finally agreed to get the help he needs. I went to work and he didn't call to ask if I needed anything. He told me what he feels like having for dinner, instead of asking what I want and then getting everything cause I can't decide. Even asked me if I could pick it up, instead of him driving to a place I would pass anyway. This feels normal. I can't wait to get back home and enjoy him, however long this lasts. I know that very soon I will have my best friend back for good.
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TLDR- I tried some deprogramming tactics and it worked. Last night I called out the bull**** the "self-help guru" fed him and pointed out I would give up this charmed existence in a heartbeat just to have my old friend back. I reminded him that if he keeps pampering me out of fear of losing me, one day he will start resenting me and that's the only way he could ever lose me. This morning he started acting just like in the old days and agreed to talk to someone, scheduled his first session for 2 days from now. Today, this feels like our normal relationship. Even if he regresses again tomorrow, he will be working on fixing his issues and I believe some day I will have him back for good.


Source.