Is AUTHOR wrong in the post ? POST : My boyfriend is currently living with a close friend of his and his friends gf. I have gotten to know them fairly well and we hang out often. 

Recently my bf’s friend confided in him that he cheated on his gf while he was on a trip home visiting his family. Rather than tell his gf this, he has decided it is too late to save the relationship and has decided to break up with her. For the past two weeks they have been fighting and it is heartbreaking to hear about. The gf doesn’t understand what is going on. They have been together for a couple years at this point and all of a sudden her bf is insisting the relationship is over. She asked him if he cheated and he told her he wouldn’t answer the question. 

My bf has been staying over at my place to give them room, but his friend even asked him to stay over there the other night to “ease the tension”, which I think really means “help him avoid his gf confronting him.” 

I think at this point the gf deserves the truth. She clearly wants a legitimate explanation for why all of a sudden her long term relationship is ending. It is just a really sad situation. On top of that, the bf is now planning to pursue a long distance relationship with the girl he cheated with because he thinks she’s “the one”. I think this is ridiculous. He just MAJORLY fucked up.. i don’t think it’s the time to start another relationship. Especially another relationship that began with cheating! 

Basically this guy is being really shitty and hurtful to his gf. Would I or my bf be the asshole for telling the gf what’s up? I don’t know that it’s my place to say anything and my bf feels loyalty to his friend who confided in him, but I just feel bad for her. If she asks me or him directly, would we be the asshole for telling her the truth? 