It is not "forgive and forget" as if nothing wrong had ever happened, but "forgive and go forward," building on the mistakes of the past and the energy generated by reconciliation to create a new future.
If little faults proceeding on distemper
Shall not be winked at, how shall we stretch our eye
When capital crimes, chewed, swallowed, and digested,
Appear before us?
In forgiving, people are not being asked to forget. On the contrary, it is important to remember, so that we should not let such atrocities happen again. Forgiveness does not mean condoning what has been done. It means taking what happened seriously...drawing out the sting in the memory that threatens our entire existence.
I am slow to listen to criminations among friends, and never espouse their quarrels on either side. My sincere wish is that both sides will allow bygones to be bygones, and look to the present & future only.