Well there are many ways.
First of all let me tell you. You never do anything out of spite or jealousy. This damages ourselves and stunts our personal growth. You will only destroy your person by going down that path.
It is also harmful to drink yourself to sleep or use substances to forget. This too is harmful to the soul because your running away from your feelings rather than address them.
You must open yourself up and if you feel guilty you must forgive yourself. If you feel they are guilty you must forgive them. You cannot hold on to hate because that is not healthy. You must achieve a peace by being accepting and loving to your neighbors.
Yes this can hurt but you must let yourself heal by engaging in a positive attitude, being kind to others, and loving yourself.