I don't necessarily think mediation will be out of the question once everyone calms down...
Focus on protecting you and the kids. And, honestly, I think your H deserves what you have said and I think you are handling it like a champ. (I am NOT the poster child for DB, as you know--but I sure like what you did.)
Once you calm down, go back to focusing on the 3 crucial conversations questions. Make sure that you don't cut off your nose to spite your face. And who knows- if your H thought you were "poor Morgan", this might have just really rattled his cage enough to make him think twice.
Me-43 H-46 M 12 yrs 7/09 T 15 2 grown kids bomb 7/05/07 H moved out 8/04/07 11/22/09 told him I quit;let's get ball rolling Mid Dec- he isn't sure he wants D End 2/2010-Starting to consider piecing