Hi @Talita
"Help" is arguably the most tarnished word in the history of mental healthcare. For decades - centuries even - it has been used in a way that means: "We are going to do what we want to do to you, all the while pretending that we are actually serving your will." It's the way that things have been for a very long time, and it's the reason why an awful lot of people who are in desperate need will often refuse offers of "help" - because all too often it is just a code word for exploitation.
I guess what concerns me about your post is that I see a lot of agonizing about your boyfriend not behaving in the way you want him to behave, and not much interest in assisting him to get what he wants, or even determining what that might be. And my further concern is that if he is surrounded on all sides by this - by people who are solely driven by an agenda of: "How can we force him to act the way that we want him to act?" - then is it any wonder that he has become suspicious and paranoid about everyone around him?
Does he have anyone who has consistantly demonstrated that they are on his side, rather then merely told him that they are? (Words are cheap, keep in mind). Does he have anyone who will engage with him based on his definitions of what is right and wrong; desirable and undesirable; helpful and unhelpful?
Or does he only have people who criticize and make demands of him?
If, as you say, he believes that you've all betrayed him by sending him to hospital, then it may take a long time to rebuild trust with him, and until that time he may be deeply reluctant to talk with you frankly. But if you can get back there - to a place of trust - then it might be more agreeable for everybody to find out what it is that your boyfriend wants for himself, and try, as best you are able, to help him get there.