I totally understand the fixer mentality. But your W has chosen her own path, and it's not your responsibility to stop all these bad things from happening to her. She needs to experience the consequences for herself. That may be the only thing that makes her see the light.

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.