I haven't read the other thread on forgiveness yet so excuse me if I duplicate responses.
Forgiveness is a selfish act for me. It's not for the party who wronged me. It is for me to get over it and to feel better. Usually the person who you want to forgive could care less. You care and you hurt. Once you forgive their behavior, justify their behavior or tolerate their behavior you feel well enough to get past it.
Doesn't mean I would be best friends with the person who wronged me. Doesn't mean I would have a warm relationship but I can go on with my life. How one creates forgiveness in themselves is pretty personal. I suspect we each have coping mechanisms specific for our personalities.
I don't want to waste one day being angry or take on anger as a burden if I don't have to carry it.
Think of forgiveness as a way to lighten the load of grief.
