Rejected by a Class Fellow

So here is the story:
I study in a university here in Pak and the girl which i really liked lived in saudia arabia for 10 or so years. After that she completed her college and is now completing her uni in Pakistan. We have been togather from the starting of our university and being completly same in thinking and other things as well we were too close to eachother and were somewhat liking eachother. However, during the recent days she started to act a little dry during the vacations and then she started to u know not talking that much and then when i asked about it she said some excuses and then after making her talk for an hour or so she said that she dont like me and I am a good friend of her. The thing is that we have been very close to eachother and even at this age I am very professional in my life but what I think should be the reason is that she wants to settle in Saudia Arabia whereas my main goal is for US or other countries but I would be willing to do anything for her... What should be my next move in this?? Should I stop talking to her and act like I dont know her orr should I keep talking to her and keep her as a friend however I would have feeling for her orr should I keep working on my self and get a job in saudia which i can do during my studies but i think it wouldn't guarntee her also like should i ask her about this????