My opinion....
I think when interventions occur, or different rehabs or support groups are made manadatory by the courts this is what occurs. People are just going through the motions to avoid jail or to please someone.
The addict has to WANT recovery and if it is forced or mandated it does not work.
I am sorry for your situation and I get the frustration and pain.
I don't mean your husband was forced to rehab, I mean the people who he used with again obviously did not have good intentions.