Well, you have to remember this: You are one half of this relationship.
You can't fight the divorce forever. I'm not sure how your state does it but eventually in Florida, a no fault state, you will get the divorce.
But with all of that, you tell her I'm not sure divorce is the answer for me. I need time to think things through and a trial separation is how I plan to take the time I need to do that. We've established I have no ability to control you. Let's establish you have no power to control me. I'm going to take my time with this because it impacts me greatly, no matter what the outcome. It impacts you and most importantly, it impacts our children. So I'm putting me and them first, and I'm agreeing to a trial separation for the time being. You're a smart woman, that's why I asked you to marry me. So I know you may be mad right now, but I also know you see the logic is this. So let's just leave it at that for now....I can do that for you, will please do this for me? Great. Thanks. Walk away then.
Oh and the "You bash me with your friends!" accusation....just an excuse to fight with you.
It's very hard but try to walk away when she wants to fight with you. Change the subject. Flat out tell her, I won't fight with you. I'm just too tired right now. Thanks for understanding.