[header] How to forgive someone who betrays you [title] Understand what forgiveness is. [step] Forgiveness does not mean excusing or accepting the betrayal. Rather, forgiveness is the act of freeing yourself of the anguish and anger that you've felt towards the person who betrayed you. 
Forgiveness means letting go of your grudge against the other person. [substeps] Even though resenting someone who betrayed you seems like an appropriate response, in fact the only one you're hurting when you refuse to move on is you.