My boyfriend and I have been together for 4 1/2 years now and I know he has a difficult past. 
He always wasn’t doing too well mentally but recently it has gotten very bad. He openly told me about how he feels, which I am very happy about. He told me he loved me, i’m the most important person in his life and loosing me would be the worst. I feel the same about him. But he also doesn’t know what he wants, meaning he also doesn’t know if he wants to stay with me.He wanted some time for himself and I gave the time to him. We hadn’t spoken for a week and after that he was doing a bit better and we spent  a beautiful day together. Two days later, yesterday, he was being distant again and he told me that he doesn’t feel good again. Doesn’t know what he wants , in return to my question if he wants to be with me. Idiot me, even asking. I’m just very anxious. I want to support him the best I can but at times I just don’t know what to do that actually helps and doesn’t make things potentially worse. I know to not take anything personally and that him pushing me away doesn’t mean he doesn’t love me. I also don’t know if this is anything to post/ ask here but I wanted to hear what people have to say that share the same condition.
Thank you in advance!