When we are hurt by someone, we instinctively have a sense of retribution, that is, do the same for that person. However, this is not a noble feeling, this is sustained by the emotion of the moment.
The best way to resolve a grievance is to dialogue with the person. You can question the attitude of those people and explain how it hurt you. Maybe that person can apologize and change his attitude. If she or he persists hurting you, you must walk away because that person is not worth it.
