The best thing we can do with the failures of the past is to let them be history. Yes, it happened. Certainly it hurt. And it may still hurt, but he/she has acknowledge his failure and asked your forgiveness. We cannot erase the past, but we can accept it as history.
We can choose to live today free from the failures of yesterday.
Forgiveness is not a feeling; it is a commitment. It is a choice to show mercy, not to hold the offense up against the offender. Forgiveness is an expression of love.
*Gary Chapman's "The Five Love Languages", pg. 47-48