You mentioned that you used to do everything for him. That's not being an agressor. It's being an enabler. Let's put it this way. He's had "problems". You acting the way you have isn't being agressive. It's just being angry. He constantly stepped on your self-esteem and you decided not to put up with it any more.
As far as I can tell you've never forced him to do anything except maybe getting some help. There's nothing wrong with that.
In maintaining your answers short, it shows you have better things to do rather than get sucked into his drama AGAIN.
In the past I'm sure you would have written a lengthy response. Well your 180 is to keep them short and sweet.
Overall your response message is great. I would eliminate the "niceties" like the greeting. It's to show him that you ARE NOT comfortable with the sitch the way things are.
"I'm pretty busy right now.
Your clothes and computer are packed and sitting by the front door for you to take tomorrow.
I will leave you on my insurance. I will not help you with any legal services.
I committed to helping with the reunion and that has not changed. I will leave the UPS key for you on the counter to take tomorrow. I am still able to send confirmation emails, if needed.
I will be attending person and person's wedding.
The cash is not necessary. In several weeks my packcheck will transfer to a seperate account. I would also like to take over paying the bills and remove you from the joint billing account. Your paycheck would still go into the "joint checking account" and your bill/mortgage portion would transfer into the joint billing account. My paycheck will deposit into a seperate account. In terms of the credits cards in your name you can continue to pay those from your account.
Gotta go."
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.