Wizards Fourth Rule

So, this rule actually applies to my life right now. The forth rule is another good one and it makes a lot of sense.

"The Wizard's Fourth Rule, he called it. He said that there was magic in sincere forgiveness, in the Fourth Rule. Magic to heal. In forgiveness you grant, and more so in the forgiveness you receive."
From the book Temple of the Winds by Terry Goodkind

Right now one of my "friends" is pissed off at me and i don't really know why. It has been like this for a few months now. Many people hypothesize that part of it is because he feels that i am trying to steal my girlfriend away from him, and i can see why he doesn't want to loose her as a friend. I don't want to steal her away though, i want her to stay friends with him. Now according to him there are other reasons behind it, but i really don't know why he seems to hate me so much. So I've been trying to confront him recently so that we could try to talk things over and smooth things out between us. After trying to do this for a few weeks now it finnaly seems like we're going to be able to, so i really hope this rule is true, because i don't want to lose him as a friend nor do I want my girlfriend to be hurt. heres hoping everything turns out well.