The thing I'm hesitating about the letter is that it sounds angry, and I don't want to sound angry, I just want to sound done. How about:
W-
This is ridiculous, and boring. I've decided to move on. Life is too short to waste on this nonsense. If you ever decide what you want, let me know. Maybe I'll still be interested, although at this point, I can't imagine why.
In the mean time, I need to push forward with the legal separation so I'm free to pursue a new life. I'll manage to find the money for my half, and if you can't cover your half, I'll cover that too and just take $100 off your monthly support until it's paid off.
I'll contact the mediator and arrange a time for us all to meet to get it done.
