Hi Nicole your situ is tough, I'm sorry you're facing all this. I have a similar situation with my 44 year old h in limbo - been like this on and off for 4 years. We're together but living seperately. Sounds like your h really caress for you and your d deeply.
I've called my post 'Is this actually happening....because I'm in the same place as you can't believe this is my life... it's so surreal.
Shock and disbelief are stage 1 of the grieving process. Stage 5 acceptance is a journey .... take your time on the journey.
I'm sure loads of the folks here all went through the shocked phase and are now on the other side.