Sorry to hear you couldn't find any support group.
Good you've got PC!

I think it'd be good to move on from feeling guilty about posting stuff about him - and I don't think it's being deprecating if you're simply stating what's happened and venting!
And I think, well I experienced, that part of the spell these abusers hold over their victims is having them believe their honour and worth lies in how much they look up to the abuser and protect their false image of goodness to everyone else.

Hope you have some peace for yourself today