From my experience, it has nothing to do leaving. Its a support group for people whose loved ones suffer from addiction. It gives people a safe place to talk about how you feel, to get support, the ability to listen to others' stories and offer them support. They provided me with so much insight and support in my life. They teach how to love and support you loved one without enabling them and how they can help or dealing with the fact you cant help.
Agree with Nikki- I actually went more after my exH and I split up- I was so fucked up about relationships based on his alcoholism/drug addiction that it helped tremendously to be able to learn from others experiences.
They do not tell you what to do, but share their experience, strength and hope. Share the challenges and what they are doing . Learn principles of loving detachment, how to take care of yourself and lead a good life inspite of the alcoholic/addict and their issues/behavior Offering of support - everyone there understands Learn about co dependance and enabling