He was my best friend in highschool. We were so close and we didn't ever want to leave each other. But I and my family had to move out of the state. I missed him a whole and never really got a friend as good as he was. Later on, we lost touch. I wasn't on Facebook and I didn't try to search for him.(still regretting that.) I rented a small apartment last month. It's closer to my present working place. When I saw who my neighbour was, I couldn't believe my eyes. It was Josh! My highschool best friend.Was this a coincidence? I just couldn't comprehend. But it felt so nice to have him closeby. I wanted us pick up where we left off, continue to be friends. But then I noticed some of his strange behaviors. He was hiding things from me, he wouldn't let me see his apartment ( something he never did before.) At first I thought he was now a horrible person who didn't know how to treat people. But then, he came over and apologized to me, then he invited me in. I didn't notice anything, I was just so happy that he was still himself, and I also found that he was a hip-hop dancer. I got back early from work on one of those afternoons and decided to give him a surprise visit so we could eat pizza and watch a show together. (That was how we used to catch up). I knocked several times but he didn't open the door. So I went in, and to my greatest horror, Josh was laying unconscious on the floor with white substance all over his nose, his mouth and the floor. Then I didn't need anyone to tell me. My friend was into drugs. I called a private doctor to treat him because I didn't want to get him in trouble. I still feel very bad about it. It saddens me whenever I think about it. He wants to stop, but he doesn't want to go to rehab. He wants to deal with it on his own. I'm trying my best for him. But what else can I do if he refuses to go. I don't want my friend to be destroyed, because he means a lot to me. I'm so desperate, he was such a sweet boy in school. What do I do to help my friend?