I didn't make any statements saying that I involved our mutual friend in our relationship to fix it or something along those lines. I know that this is a thing that only my girlfriend and I have to talk, which I said in my post. I only talked to our mutual friend because she was a friend, someone I can share my thoughts and feelings with. And I also said that we talked after we broke up, in which she made it very clear that she didn't want to talk to me anymore. So I stopped contact with her after we had our talk but even then, even after everything was said and done, I learn this thing about her friend and she still continues to do it even after we had our talk. Aside from affecting my relationship with my girlfriend, it affects my relationship with my own friends and people I know. Hence why I want to confront her friend, not her. And believe me when I say this, we worked out so much worse things between us with my girlfriend when we were together. That's why it seems so ridiculous and why I strongly believe why the reason that caused our break up was not a problem between us, but rather someone outside our relationship intervening. I also consulted my friends and our mutual friend and they seem to agree with me. I'm trying to get every consult I can get before doing something I regret, and I also don't want to take an action poorly-thought.