i think separating without an agreement is not protecting you or your kids.
You keep saying you are worried about what will happen to your kids, but seems you are being scared of you W.
Do you really think if you get an agreement she will think you are controlling or is it you think things are more permanent and she wont want you back?
i have seen this over and over in your sitaution. You avoid at all costs talking about anything about this with W. First pictures, then kids communicating with W. What happens when she tells you that you can see the kids anymore or wants you to pay her money?
She moves friday right?
I have to say i am concerned for you in this.
I think you are trying to just not do anything in hopes she will not get mad at you.
M 37 W 34
T 12 M 8 D 7 S 4
Need break 4/12/15 W no ring 7/7/15
Separate room 4/12/15 Separate living suggested 8/15 W moved out 11/1/15