That's very true. But the timeline for her changing her mind may be longer than you think (months or years).

Regardless, I really don't think in-house separation will help in any way. Let her go. I know it's not easy.

Me-47,XW-43
S13,S16
M:18
BD:4-23-17
W filed:7-17-17
(5 months of in-house separation hell)
W moved out:1-6-18
D granted:2-15-18
Decree signed:3-29-18

Your future is out there. Go find it.