Quoted from RyanStl:
How do I deal with talking her out of this nightmare? They are going to do counseling, but like everything it's months out. I know there are lots of details I can't get across, but I want some advice.
As someone whose parents also got divorced at a later age, my advice would be that you don't try to talk her out of anything.
It won't work anyway, and it will just drive a wedge between her and you. Not worth it.
Try to stay as neutral as you can and simply be there for either of them if they need you, and resist any temptation to talk shit about one of them to the other.
Do not take "sides" in this, even if you have your own opinion on whose "fault" it is. You don't know as much as you think you know about what is going on. Don't overthink things and try to understand it. You won't.