Ok so for context I have suspected BPD, literally all traits but my psychiatrist Said she doesn't wanna put the diagnosis down yet Im with her since less than a year. I'm also diagnosed with autism and it's hard for me to know what other people might find annoying or helpful.

My boyfriend has BPD and he shut me completely out his live 2 weeks ago. I didn't have much contact with him -we don't live together. And I'm texting with him a few times a day since a few days. I guess U could say he is a quiet BPD bc he lets the anger out on himself and isolates when he has an episode. He Texts me back quite frequently again and he is no longer as distant as he was before. He tends to get paranoid when he isn't well and I know that he hasn't left his house in at least 2 days- before that he just went out to buy cigarettes which is a 5min walk. 
I was thinking about driving to him and going for a walk with him but he says he would rather stay inside (meaning alone inside). He is really really unstable and my therapist said she would send him to the hospital if he was her patient from what I told her about him. 
I know he said that he didn't want me to come over and I don't wanna overstep his bounderies but I know that for me it helps a lot to go out in nature especially at night- we both get easily stressed and paranoid with people around and love the night time.

He also didn't eat the last 2 days and I would like to bring him something but again, I don't wanna overstep the bounderies since he said he doesnt want to.
When I am Like this I also think I don't want people around but when they are close to me I feel a bit better and I guess it could help him and I also just wanna see if he is okay. 

I would love your advice on this since I am mentally not well either and don't know what would help him. 
Any opinion would be appreciated!