I am so sorry you are heading that way. Just cause it is difficult. It's hard to process and get through. I think Pearl's comment is good to take to heart. You are angry right now and your going to have to deal with that whether you divorce him or not so just let flow for now. See where you are when a little time goes by and you let this stuff settle in.
Keep going to IC. If you do this make sure you know exactly why you are doing it. Don't leave anything there you are going stew about or that is going to stick with you like a stone in your shoe.
My goal is to some day be the person my dog thinks I am