These messages about how you should have told her immediately- what!? If someone wanted to end a 25 year marriage to me I’d want to be damn sure they’d thought carefully and long about it, waited for a mood or temporary feeling to pass, explored carefully with advice, how to say it, been totally sure it was a subject they were right to bring up- before they started threatening the end of my current circumstances. It’s not a light thing to say and not something to say while abroad.
It’s only two months of thinking for gods sake. It’s hardly she’s been “living a lie” for three years or whatever.
However it shows that for some people, any kind of breakup, even one in an acknowledged dead marriage, hurts their pride and makes you a villain. Having a villain is very soothing- it makes your friends rally quicker, it makes you feel better about the self doubt that creeps in, and gives you somewhere tangible to put their anger and fear.
fortunately not everyone goes down that route. Many people accept and deal with hurt in a grownup way, recognise the truth or at least the inevitability, see why it’s happening, feel sad but wish each other well.
really, there’s no golden way of breaking up with someone and if you are unlucky enough to have a Victim Spouse then it can be tempting to think anything you do will be spun in a way that makes them hard done by. Those people have a blind spot to their own faults and a reactive nature often going back to childhood. However you can stop it getting worse. That way you can hope that it’s a phase of grief and will eventually lead to acceptance- and even, appreciation of what your relationship evolves into at the end.
so keep trying. keep being as good as you can be. there are good and bad things to do in ending a relationship.
you have to go- face to face, no personal insults that might dent their confidence, be kind, patient and fair, be financially generous, consistent (no romantic waivering) and firm about your own boundaries, don’t react to goading, grieve together and give them time to readjust.