Thank you all for your responses, I really appreciateall your comments!
Obviously people have mixed opinions on this, it really is a delicate decision with serious repercussions for both spouses.
Just to make it clear: I haven't yet stopped going, but really wanted to.
My wife and I have recently moved to a different city and that allowed me to not go to meetings for several weeks now.
I still don't know what to do; recently she began to be really upset with me when I tell her I don't want to go to the meetings. She thinks I owe her that; which in some sense I do (she has been covering for me for a long time).
At the same time, as some of you have mentioned, it might take a firm attitude on me to wake her up.
Again, I deeply appreciate all comments above!
Cheers!