I’m not sure you’re in the best position to determine, without forewarning, who did what to whom - or who caused what. Not at this point at any rate.
Without warning implies no counselling occurred, or is going to occur.
It isn’t over until the divorce papers are signed, and even then there’s ‘buyer’s remorse’ on the divorce and people end up being remarried.
Unless she’s dead, nothing is over until you’ve exhausted either your options or yourselves.
This sounds like it just happened. I’d go to a counsellor by yourself to start, and then see whether she’d be up to going sometime soon down the road.
My 2 cents at least. Keep praying is the other advice. I’d pray NOT for what you want, but for God to reveal His will and to give you the courage to carry it out.
I think that’s a fair analysis. Thanks.