I'm in somewhat of a similar spot right now. A manic episode and the fact that I'm trying to stay clean has left me basically friendless, including my best friend.

It's hard, but when everything is right with yourself everything will fall in to place with the people in your life. All you can do is apologize and hope they come around. I believe everything happens for a reason and I my lose of friends as an opportunity to work on myself if that's any solace.