Early in my Christian life I learned that often, the ones you help the most are the ones that will hurt you the most.
It isn't always the case, but it is such often enough that the Soldier of The Cross must learn to give it up to the Lord and move on.
Are you the critical issue or is the work of the Lord more important?
There are many times when the most thorough explanation and deepest love will not fix the matter. The problem is the attitude and sin of the person who chooses to misunderstand.
This life is not the place where all justice is displayed. That will happen in the bye and bye.
Do all you can. After you have left your gift at the alter and addressed the matter in a biblical way, let it go in prayer.
Aloud.
To The One who knew about it before it happened.