Hello, welcome to the Failures at Marriage errrrmmmm Divorce and Separated forums!
I participated in DivorceCare and I would HIGHLY recommend it to a Christian going through a separation or divorce. The reason I say Christian is because it's very biblically based and the one non-christian we had attend was very uncomfortable with it and she eventually left.
The things I liked about it were:
1. You get the opportunity to interact with other people going through similar circumstances.
2. You get their feedback and advice and see how your situation isn't as bad as someone else's. LOL, there's ALWAYS someone worse off!
3. You learn more about divorce and separation in general and about how you're feeling, should be feeling, etc. The class is very informative.
I'm not sure how all DivorceCare classes are set up but mine was a two hour thing where for like 30 mins we chat and update our situatinos, 45 mins we watch the movie lesson, and then afterwards we talk about the movie and about our situations some more. Then we closed with prayer.
I think the only potential downsides are if the gender numbers are skewed. Like for me, there was only 1 or 2 other guys ever present and towards the end, it was just me and 1 other guy. The rest were females... which I'm fine with but I'm sure it bothers other people. Also, the group leader should be knowledgeable and not let people carried away with their stories. Some people have no one to talk to and they end up monopolizing the talk time.
Overall, it was a great experience and I will probably take the class over again. Lots of people do. You make good friends too

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Anyway, good luck!