Jessica, I am sorry to hear about the break up of your friend and her boyfriend. I think your friend need to give some space and time to her boyfriend. He may need some time to think things over and have enough courage to explain his behavior towards her.
Does she have any idea why her bf started to ignore her calls and emails? I mean did they have some misunderstanding that leads to this situation? It's difficult to jump into conclusion. Your friend needs some time to think as well, and try not to be clouded by jealousy.
I hope they could settle this. She's lucky to have you as a friend, you're giving her the support she really needs at this point in her life.
