It's something you give to yourself. The primary reason to consider forgiving those who have hurt you is for your own peace of mind and the quality of all your future relationships. Otherwise the pain of what was done to you in the past will poison every relationship, whether it's with your family, business associates or sexual partners. Making the effort to forgive is valuable because it helps you find resolution within yourself, and that's what matters most. In the end, you may or may not choose to reconcile with the person who's hurt you.
Resolution is always possible, reconciliation only sometimes.
Our bedrooms are very crowded places. We're either complying with the sexual messages our parents gave us or defying them in adolescent ways. Of course all our former lovers are hovering over the bed as well. Also present are all the other carriers of sexual messages, such as our peers, teachers, clergy and the media. Unfinished business from the past can have a huge dampening effect on our love lives.