Boyfriend gone off medication

Hi, this is my first time posting on here and the first time I am reaching out for support. My partner suffers from some very traumatic childhood experiences and has never dealt with them. He doesn't want to talk to a professional about these experiences because he thinks they will think he is crazy and will put him back on medication. He has had many suicide attempts prior to our relationship. Since we have been together I have witnessed him in a state of psychosis a couple of times and it was awful. He believed that I was against him and that I was involved with people from his past who had hurt him. Some of the stories that he has told me sound very unbelievable and extremely hard for me to comprehend. I have listened to him and suggested that he get support from a professional, but he thinks that they won't believe him. He has been put in a psych ward a few times in his life, one of them only being about 6 months ago or a bit less than, after a psychosis episode that I sadly witnessed. There was no formal diagnosis that I am aware of, although he did mention something about thinking he may have bipolar. He was really good a while after he started his medication, and had been up until he recently stopped taking his medication about 2 months ago. He has been fighting bad thoughts in his head, hearing people say things to him, and has become extremely obsessive with religion, reading the bible out aloud, and all day every day listening to Christian radio and preaching to me about Jesus. He even made me to go to church with him. It's seriously becoming too much for me to handle alone anymore. Last night he started blaming me for having a conversation with someone I knew nothing about and saying that I was part of the group that was out to get him. I almost walked out because the look in his eyes and his facial expressions, looked exactly the same as when he last had a psychosis episode and the things he was saying were along similar lines. The things he had said were nasty and just not anything thay would normally come from his mouth. His converation was all over the shop and very far fetched and hard to believe. He has this thing for wanting to help others, to the point where it has also become very obsessive and taking over his life. He is selling or giving away everything he owns and is putting others first. I understand that people should help others, but nothing their means. We only had $100 left the other week for food and fuel for me to get to work, and he spent $70 on a wheelchair and walking frame from the thrift store. I was beside myself, because it was not a necessity for ourselves or anyone in either of our families. When I asked him why? He said that he planned to give it to someone in need. His behaviours have changed dramatically since stopping his medication, and its just not him. He is normally a very loving and affectionate partner, but he has distanced himself from me since stopping the medication. It can't be good for him stopping suddenly without any medical support in doing so I would imagine. But how can I tell him this and get him to go see someone for help. I want to help him because I love him, but he is pushing me away. I don't know what to do??? He is also telling me that Jesus comes first. He is so up and down, I just can't cope anymore!! Please help!! Has anyone else experienced this or know where or how I can get support? There is so much more I can write but it's so hard to explain everything that he says has happened and that is going on in his head!