Arsh, I consulted with a Christian counselor who said "don't give him the easy divorce he wants!" regarding mediation. But the mediator with whom I spoke said "why should a court get to make decisions about your family when you can make them yourselves?"
Here's my personal thinking - if your husband is set on a divorce then I think mediation is fine. Let him get a quick and easy divorce so he can start to experience the paradise he thinks is awaiting him. Let him find out what it's really like to be divorced and alone with all the time in the world to enjoy his hobbies. It might be the greatest thing in the world for a while. Then it might start to get old. I think he your husband has to experience the free life they dream to have before they can think about what they've done. Perhaps once your husband gets everything out of his system, and you're living separately and out of the 'pressure cooker' situation you're currently in, then he'll start to have more fond memories of you and will start to regret what he's done. Since it's happening so fast he might also wake up one day and realize he threw everything away and try to fix it again. That would create a dilemma for you - would you take him back after divorce? What if you end up like me, let your husband back and he leaves again? And what if your husband wants to come back but only as a roommate or as a parent? There are things to ask yourself about the future, but for now, in your particular situation, it seems there's a higher chance your husband will come to regret his actions with a quick and easy divorce than to change his mind during a long contested divorce.
