I can totally understand why that would be frustrating and insulting for you to hear. The sad truth is, most people have a hard time stepping out of their own existence to see the bigger picture. We all approach life from the perspective we have been given. In her case, she likely hasn't had to struggle the way you have. She's likely been brought up or learned to believe that certain things are supposed to happen for her, and it creates cognitive dissonance for her when she is unable to live the life she thinks she's supposed to have. There are times in life where we can walk away from those relationships that make us uncomfortable, but if that's not the case here, then maybe there is a way for you to gently guide her to understanding that there are people in her life who don't have what she has, and that gratitude is a far more attractive quality than selfishness. Sometimes all you need to do to do that is by acting grateful for what little you do have, and showing her what it looks like to be a humble and gracious person.