PF, please. Change your locks now and stay out of FB. That is a very lame reason for monitoring and analyzing his FB posts. Hang onto your keys and keep yourself safe.
I think it would help you a lot to consider yourself separate from him and detach yourself from his ramblings and doings. Work on yourself - you cannot save him, only he can do that.
Your reports about his FB activity almost sound like you are addicted to him. Can you block him and try to go for just one day without reading what he's posting?
Your GAL sounds great, exercising and playing with dogs, hopefully that gets your mind out of his business for a while?
Hugs and welcome, please listen to the vets here, they can really help YOU.
Adinva 51, S20, S18 M24 total 6/15/11-12/1/12 From IDLY to H moving out 9/15/15-3/7/17 From negotiating SA to final D at age 50 5/8/17-now: New relationship with an old friend __ Happiness is a warm puppy.