alanon is a 12 step program usually or wives/parents of alcoholics
But it teaches detachment just like DB
It is free and in most areas
It might be worth checking out to learn more about detachment and taking care of oneself

I never got to that place of XH wanting to try again..so I have no experience there..
hopefully Job and others can guide you

I think different strategies work for each situation
so Its hard to know without trial and error what will help/hurt your situation most
One DB coach once told me:
If the strategy brings spouse closer keep using it'
If it pushes them away try a different one

there is also tough love, written by a pastor..I think
although this one is usually not recommended on DB and I don't know enough about it to comment

hang in there
but Ive heard it can also work-


married 14 years
H 42
bomb 2/07 IDLYA
D final 3 /09
M ow D ow