If it were me I'd probably stay. She seems to really like you and thik about it like this - if you were dying wouldn't you want to go out with people you like or would you rather do it alone with the people you've grown to love abandoning you.That'd be a miserable way to die. It's definetly going to be tough, but those two weeks pay will help. Also, this is probably something you should have seriously considered as a possibility when choosing you career path. I believe the right thing to do would be stay as long as she needs you to.