I wasnt saying she should keep chasing the guy, she needs to figure out why he left her in the first place and see if there's a way to fix the relationship.  Considering the lack of information in the question I'm going to have to assume that she doesnt have any idea why he left.  Keeping that in mind, there's no way that any of us responding could know enough yet to tell her to forget it.  Telling someone to bail on a relationship they've obviously committed so much emotional energy to without knowing the details is a bad idea, all I was saying.  Given more information I could have made a better decision as to wether it's a good idea to give up or not, but neither OronD or I had such information to go on.  When the question is a simple "what to do" type, like this one, with no back story saying "give up and get out" is likely not to help the person asking.