Remembering and Forgiving

How do we learn to forgive while still remembering the situation? Remembering and forgiving may seem contradictory, but in fact if we truly forgive we will remember how God has blessed the situation. Many times in scripture we are asked to forgive each other because God has forgiven us. Joseph is asked to forgive his brothers. Many people ask God to forgive them, but we are also asked to remember how God has blessed us. The more I think about it, the more remembering and forgiving seem to be synonymous and not contradictory. Your thoughts?