i'm so sorry for the pain you are going through. i also understand the righteous anger you feel. many people, like the other contributor, might well question why you would even think of trying to save your marriage. i can't honestly say what i would do in your shoes, but i do know this. if i listened to my better judgement i would give myself some time to feel like any decision i made was truly thoughtful and not overly driven by the emotions of the moment.
i might be able to help you, but not if you don't want it or think you are beyond the point of no return. if you want to keep the marriage option open, let me know with a reply.
in the meantime, please know you have my support in spirit for what you are going through. if you hang around here i think you'll find a lot of that.