My point is that divorce is not the first step, here are a multitude of steps before that.
To go from zero to divorce is a sign of real flaws in that relationship. Like maybe the wife is afraid of the husband or something like that. It's absolutely not possible for someone to hide what they are like for years, that could only be done through willful collusion.
Now, were talking about me and my wife's relationship here, that was the question, it's my significant other. It's just not feasible for my wife or I to not work to make the relationship move in a positive direction. Divorce would be the end of a failed process, not what you suggest, a complete lack of communication, ignoring your partner.
Now you can of course say that your experience is different, but man, I don't know how you can consider that good advice.