Catching up a bit. I know with the emails you are trying to set a boundary but seems harsh. You don't have to respond until you want to. That actually may be more than trying to control her actions. I think a boundary should be more of things that you would let no one do to you.
How should you act with her? Who knows but I do know I acted as I could care less with more women than I could count and it worked on all of them. It I was always nice and would do anything I could for them. I just didn't chase. Crazy. Not what I did after BD!
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