Dude, I had same sitution few years ago though I already have GC n good job after Gradution but I choose the girl even my parents didnt accept her. If she really loves you don't worry about future cuz divorce ,seperation these all depend on how you treat to her >if you behave well n respect each other n above all if ur relation is based on true love I bet never that kind of down sitution will be come.Only thing you have to know is u gonna have to give up with many things, same for her. Be globally buddy,go for it.
last  but not the least  ,even you marry with a Nepali girl who can gurantee that there will be no divorce?? i have seen many cases of Nepali couples relationship is not going well...i