Contrary to the conventional wisdom, biblical forgiveness (as discussed in this recent post) is not a state of mind or a particular emotion; rather, forgiveness is a verbal transaction between two parties in which one requests relief from a felt obligation and the other grants it. Letting go of anger, resisting bitterness, and getting over old hurts are simply not the same thing as genuine forgiveness asked for and received.
But there is another aspect to genuine biblical forgiveness worth exploring: it requires that the correct parties show up to the table.