I'm married 34 years and thank god I don't have to deal with this much. Every once in a while, somebody simply stops responding, it is annoying, discourteous and it is effective.
However, lest I claim to be an angel, a few years ago, my direct boss annoyed me to the point where I was on the edge of resignation. To avoid any further discussion and what could only be a continuance of conflict, I ghosted him for about a month. No response to any of his calls, texts, emails etc.
My behavior was nonprofessional and goes against my general nature of always wanting to be reasonable. Anyone who knows me knows I'm easy going. However, I was pushed to my limit by unnecessary and uncalled for actions on his part. An honest review of the situation is that "ghosting" was an effective tool. I could have been fired, which would have been just fine, or he could come to a realization through my actions that things were not good.
Put another way, you can tell someone all you'd like, but sometimes they only understand action.
My "beef" was with him requiring me to personally cover about 500 dollars of phone data charges while traveling internationally, and while loading aircraft databases "on the road" using phone data. It is good to recognize that 3GB databases are difficult to load "on the road" as most FBO and Hotel WiFi systems cut you off at 1 to 1.5GB. Each of our 3 aircraft requires 3GB every 14 days.