I think the classes themselves are a part of your process of healing, and as such, there also will come a time when you probably start to feel that you might need to move on from them.
I have nothing against support groups at all, or classes, but there will come a point when you probably want to detach from something that is sort of put out there for "survivors of divorce" or whatever they happen to be calling it. Why? Because you don't want to define yourself by your divorce.
I actually thought about joining a divorce support group myself and instead ended up joining the meditation group I go to. I can work through the divorce "fallout", of course, with my meditation and the discussions we have in our group, but what I like about my group is that we are not all victims of shattered marriages. I'm hearing about problems that people deal with that have nothing to do with marriage--last week a member told us her drug addict sister is attempting to reconnect after a 3 year silence, for instance--and this has been really good for me, because it sort of shows me that there are other people with other problems that do NOT relate to infidelity or divorce or what have you. I end up not thinking about my past much at all when I'm in this sort of support group, and yet gaining tools I can use to apply to my personal situation if need be.
I guess what I'm saying is that if you start to feel an inner voice say that you need to detach from this particular group, don't ignore it! It will have served its purpose, and you can move on to another group if you choose :-)
M45 Bomb 6/09; EA 6/10; Divorced 1/11 Proud single mom of 7 little feline girls and one little feline boy "Fall down 53 times. Get up 54." -- Zen saying