You HAVE had a very difficult week, and came through it with dignity and your head held high. That's ALL you have to think about. And by the way, to talk to D about filing for a Divorce before speaking to you is a thoughtless, ignorant move. It's also a bunch of crap. One can get the paperwork and file for oneself online, if that is what one wants. It's all blowing smoke. Just move slowly but surely ahead as you have been.
Oh, and I know about the day after hangover. Now I have an, shall we say, adverse reaction to the chemicals in the hot tub?
