and there is an element of hurt in all relationships - parent-child, spouse-spouse, employer-employee, colleague-colleague, buyer-seller, friend-friend, sibling-sibling.....at some time or the other each hurts the other. The question is how much hurt are we willing to bear, how far are we prepared to go, to keep the relationship.
No relationship, not even the umbilical one of parent-child can be taken for granted - indeed that is the most precious one and the one most worth fighting for...
While it is easy to walk away, that is not always the solution. We need to put the problem out in the open, look at it, study it, and then decide on what to do - some tweaking may be necessary, sometimes changes have to be made, maybe help has to be found, a source of wisdom needs to be tapped, we may need to rely on the thinking of higher minds. This needs a great deal of honesty and courage. But it is worth it...
Of course this becomes easier if we have a shoulder to lean on, someone who will take our side and validate us in our efforts to deal with the painful complexities of life.