Take it for what it was.... a fling that has now ended.
There are tons of women where you live that you would be able to actually nurture a solid relationship with... someone that won't be moving from place to place on a "working visa." Find one of them and chalk this up to the fun at the time that it was. In time and how constructively you use your time will get you over this quicker then just focusing on how much you miss her.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion