This is a situation that is not as unusual as you might think. My advice is to assess the situation before you proclaim your forgiveness to him or her. You can forgive from the heart and then show this by your actions. You can even strive for a reconciliation without your verbally expressing forgiveness. Of course, reconciliation is best accomplished when the other acknowledges the wrong, you forgive and express this, and the other receives this and changes. Yet, the world is not always so neat and tidy as this. A key issue is this: Your forgiveness is not diminished if you do not verbally proclaim it and if the other does not accept it. You can go in peace knowing you have done the best that you can when you forgive from the heart.