Buddhist Prayer of Forgiveness - If I have harmed anyone in any way, I ask their forgiveness. If anyone has harmed me in any way, I forgive them. And if I am not ready to forgive, I forgive myself for that.
I learned the hard way that I cannot always count on others to respect my feelings, even if I respect theirs. Being a good person doesn't guarantee that others will be good people. You only have control over yourself and how you choose to be as a person.