Does forgiving another also include the belief that this person can change for the better?
No, to forgive another person does not mean that you, as the forgiver, believe that this other person can or will change. To forgive is to offer compassion and the acknowledgement of the person’s humanity, regardless of the outcome of this belief. This is one important reason why we have to distinguish forgiving and reconciling. You can offer this compassion and recognition of the other’s humanity without reconciling if the other remains a danger to you.