My heart hurts for you. This is all so new and you are raw with emotion. There are many of us here on this board who feel exactly like you do. We don't understand how our loving partners could do this, how could they just walk away after so many happy years?
It's a mystery but apparently it happens a lot. I try to look at my WAW as if she is ill. I honestly do think there is something medically going on with her. Maybe I just tell myself that because it's easier to believe and swallow. It doesn't hurt as much.
Don't go nuclear, it would only hurt you in the end and make a bad situation worse. How could it be worse you ask? Trust me, it could be worse. As hard as this is, how much patience can you muster?
What GAL activities can you do over the weekend? Do you have Passover or Easter Plans? Can you spend some time with your kids and/or grandkids.
Take you mind off your WAW, I know it is HARD but focusing on her will only cause you more pain.