T you said before that you could change the locks and he could change them back. That is not against the law.
If you change the locks and he breaches the peace by pounding on the door and the cops show up, they will just say it is a civil dispute and they can't get involved.
This guy has effectively moved out. It is only prudent to change the locks. If he wants, he can get in line for the 90-120 hearing and you can counter-move for support. There are only "wins" for you here if you show him your strength and your resolve.
Please don't kid yourself that the boys seeing him freak out once is worse than seeing him disrespect you every single day. They are young. They are going to get over this and probably won't even have much of a memory of any of this.
