My boyfriend lost his mum in August/08, and I think he didn't have a proper grief, he was always trying to make his dad and brother feel well forgetting about himself. He relied on me, we started dating only 2 months before his mum died, and have been there for him since. He's been always saying how much he appreciates my support, and says I am very important for him. Unfortunately I had to travel for work reasons and was away for 2 months, with few opportunities of communication. Now I am back, and found that he fell in a profound depression while i was away; he is so cheerful and positive, but now he is like a whole new person, he doesn't enjoy or gets enthusiastic about anything, he has constant nightmares begging his mum not to die, he says he sees her on the streets, and he says he feels detached from everyone and everything. He is so sad, and asked me to have a time on his own, which I find absolutely reasonable, but at the same time he asked me not to get lost. I have no idea of how to help him, it is very sad to see him like this, and I don't really understand what he is going through. He wouldn't let me see him, and I don't know how else to express I am there for him without disrespecting his will of time and space, but having into account he asked me not to leave him alone. He says he wants to see me, but not now, just soon. I know I shouldn't take this personally, and I am willing to be here for him, but I am afraid he just doesn't want to tell me that he's not interested in me anymore. What can I do?