Re:so alone even though I am not teacherwriterguy: Hey WhoAmI,
Didn't mean to ignore your post earlier - I'm one of those who read it and didn't respond. I actually was thinking it over - I'd started a long response and then stopped.
My situation is not parallel, but my stbx did fall back into a heavy drinking problem shortly before we finalized the decision to divorce.
The part of your story that really struck a chord in me is where you talked about knowing that the decision to divorce was right, but still feeling down and alone. I'm with you. Though I know I've made the right call, though the distance from the marriage keeps reaffirming what's happening, you still think about the time you invested, the effort, the emotion, the devotion. Even a marriage that wasn't right needs to be grieved.
Regarding family - not sure of your entire situation - but sometimes family members need to be told how to react. I know that sounds odd, but sometimes they just aren't sure. For example, my father's reaction to the news of my divorce was to really come down hard criticizing my stbx. I had to explain to him that, while I know he thought he was supporting me, that wasn't healthy for me or what I needed to hear. He got the message, but I had to send it first...
As you said, tomorrow you may be feeling better :-) Keep hanging on.
teacherwriterguy