Understand that when we don’t forgive, we’re really only hurting ourselves. I heard a great quote that said, “Unforgiveness is like drinking a poison and yet expecting someone else to die.” In other words, this person has already hurt you, and yet you’re continuing to allow them to hurt you by giving them control over your own happiness, your own joy, and your own peace of mind.
Allen Parr
For more, see How A Christian Forgives Others When It Hurts: Four Practical Steps (Allen Parr).