It is curious. I know that when I announced my separation from my own husband many years ago, my mother was infuriated at me for ‘giving up on my marriage’. A few months later, after a discussion with my stepbrother, I found out from him that my mother had considered divorcing my stepfather, but hadn’t because of her religion. In my case, I think my mom was both disapproving because of her religion and also jealous because I was doing what she couldn’t or wouldn’t allow herself to do.
With some people it is possible that they look to be inspired by those who have long standing marriages and when those partners decide to move on to other relationships, feel disappointed, even frightened, that a ‘model marriage’ that they had aspired to had ended. It makes them fear for their own security in a relationship.
For me, what I always try to remember is that all marriages end…eventually, either by divorce or death. There are no guarantees in this world, so enjoy the relationship while you have it and respect/honor/morn it when it’s gone. I think it’s dangerous to place all your security and happiness in one other person, and it is probably unfair and onerous to that other person too. Others don’t believe that way, though.
As far as the cult of celebrity goes, it is our tendency as a culture to live vicariously through others, whether or not it is our business. Agree with you, it’s not really our business is it?