Love begets love. Like a wave, the love of an individual can evoke compassion in another. The active display of concern warms the many hearts who witness it. The love spreads for many to see. Compassion hen generates community. Others are brought into the swirling dynamic of God's revelation of care. The witness to love can inspire others to carry the tide of concern further.
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.