Is there such a thing as unnecessary forgiveness? For example, suppose there is a painful misunderstanding and neither party was unfair.
Forgiveness in this case would be unnecessary unless one or both of the people acted inappropriately after the misunderstanding occurred. For example one person might have become excessively anger and used harsh words toward the other. In this case, they would not be dealing with the issue of forgiveness for the original misunderstanding, but instead with the aftermath of that misunderstanding when hurtful words were expressed.
For additional information, see Forgiveness Defined.