i'd like to argue that this is not so. especially not for romantic relationships. yes, people change, and goals change. but in a romantic relationship, the relationship IS the goal. if you grow apart in a romantic relationship, then you have failed the goal itself.
of course this can happen when you discover something about your partner that you just can't bear. but most likely what you discover has always been there and is not a new development.
and that institutional relationship. it ended because it was never a strong relationship to begin with. was it maybe more a relationship with the individuals involved? is there still a personal relationship with that first director?
had they had a stronger relationship with the institution, they would have noticed the change of goals earlier.
to be honest, to me it feels very strange that i would even call on an institution without being aware of what relationship i have with them. when i talk to a company that i have worked with before about a new project, a change in personnel, specifically, a change in my contact person, would be the first thing that tips me off to reevaluate the relationship before talking to them.
because generally relationships are with people. relationships with institutions are defined by a contract. no contract, no relationship.
when a sales or support person moves from one company to another, it is possible that some customers follow, because they felt that they had a relationship with that person, not with the company.
Early in life it makes sense to move on more easily, not because we value people or partners less, but because we’re still figuring out ourselves and how the world works. There’s just more uncertainty.
Later, when we know more about who we are and what fits, it’s natural to switch less.
I read a book on the Anthropology of friendship in the past year, and it said that some people have the ability to be 'true' friends. That is they extend goodwill regardless of circumstances or who you are. Most people don't have the ability to do this, which is why I think everyone always feels disappointed by their relationships.