I have often thought that God (and forgiveness) is something abusers invented.

It keeps them (the abusers) from taking any responsibility for their criminal behavior while inflicting further harm on the victim by making them feel guilt and shame for not pardoning the unpardonable.

With that being said, I don't feel it is necessary to forgive ... I think that simply coming to a point of acceptance (about what was done and the impact it had) and doing our best to heal and move forward (no matter how long it takes) works just as well - if not better.