G
i think you just need to be honest. Tell her for the kids throught the holidays is fine, but then 2 weeks after she needs to be gone.

I think you need to have this talk for you and not in hopes that it will change something in her. I know that sounds easy, but it isnt. I am trying to figure out if I am contemplating a talk with my W about something for me or for the kids or to see how she will react, or even for maybe a chance of really letting go if i know the truth.

Whatever you do do not get your hopes up about it changing what she is thinking.
good luck

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