There are so many cases like this.There are also many other cases in which they are gettig married and being separated or got divorced after few weeks or months. She was only in love with that guy and she should be happy that she did not get married to the man who was not really in love with her. I am sure if they got married she would have been in deep trouble living with her boy friend and sometimes he might have even divorced her after few months or so. Now it is only a matter of being in love so let her forget what happened in the past and try to get a happy married life with someone who really love her.