Sure share what you are learning in just that way, not what he 'should' do, lol
Also maybe the two of you together could attend some Naranon or Alanon meetings
it sure wouldn't hurt.
Other than that, keep working on you. He will figure it out or he won't since he
has an A wife also.
Wouldn't hurt to pick up a couple of copies of "Co Dependent No More" by Melodie
Beattie (available on Amazon very cheap) and give him a copy with a new Hi-liter
pen and hopefully he will read it and hi lite as hopefully you will also.
As to sharing SR with him? Well, of course! I have shared SR with several folks
I know who were in the 'deep doo doos'. That is what we are here for!
Love and hugs,