You might be a little confused :(. If I were confused I would get some counsel to figure out what's going on. I think the most reasonable way to see if your girlfriend has died is to check her local obituaries. It would not be wise to work very hard to travel so far just to figure out she's totally okay and is involved in a new job. Again I would seek counsel with a person you trust or a therapist, you might just be dealing with some anxiety and confusion.