If I forgive another, I am worried that I then will no longer see the truth: What they did was wrong. Can you help me with this?
There is a large difference between forgiving people and excusing their behavior. Forgiving necessitates this: You continue to see their actions as wrong, but those actions no longer are the exclusive or primary way in which you think about those people. You begin to see them as far more than their actions against you. Again, you do not invalidate the wrong, but you make room in your heart for the person as person. Reconciliation then is possible if they are trustworthy and do not continue to harm you.
For additional information, see Forgiveness Defined.