I know that for me, talking to the person has made all the difference in the world. If your like me, then you can't forgive yourself until the other person does first! talking with the person... that's my best advice. but before you do, please make sure that they won't try to pull a guilt trip on you. guilt trips are the worst thing a person can do in a conversation like this. but talking is the best way to work through it with someone.