Oh Fuzzy, I know the feeling. I try to not kvetch to Mr Sophiesmom, but it eventually comes out in a rather disturbingly volcanic way!
I also have lost a lot of friends, but I do not blame them in any way. Maintaining friendships is work, and I simply do not have it in me. I send emails apologizing....

I am sure that they miss you. Your mind is simply telling you a lie.
Depression is such an isolating illness.....