There are few things as awkward as mending a friendship when you feel you are in the wrong. One of those would be fixing something when you don't feel you're wrong.
The problem as I see it is point of view. What I might view as a relatively simple issue just might be something another individual feels very strongly about. What to do?
Humanity in general is a seething mass of individuals who all have their own personal lines in the sand. One person draws the line here. Another draws it way over there. And neither budges from their position.
There is also the matter of resilience. Some people are far more susceptible to hurt feelings and anguish than their fellows. No one is wrong. That's just the way humans work.
But because of those lines in the sand, those hurt feelings, those differing points of view, relationships sometimes have hidden booby traps, secret vulnerabilities that all parties aren't necessarily aware of. That's when one person can inadvertently hurt or anger the others.
There are possible solutions. I suppose it all depends on whether all parties are interested in burying the hatchet.