Sorry Cherrie, for this pain in your life. As a mom dealing with AS, I know how painful it is, when they do not live in a healthy way. It hurts your heart, and we want so much to fix things, thinking that it is the way to bring happiness back to our child.that only makes them dependent on us, and makes them think that what they have done is not that bad, I believe.
You have gotten lots of good advice here. I am new here, but would just say, step back, and let him feel the pain. it is the pain that may stop him from doing something much worse. It sounds like he may be "using" meetings to make every one think he is going to be clean, but it has not reached his heart and soul yet. He has to feel the pain of his life as out of control due to his addictions.
sending wishes for recovery to your son, and to you and your family,
chicory