I feel like Barbara blamed EGR for her unhappiness BUT...
but if she would have found her way to "freedom" in the West she still would have been unhappy.
I feel like the ending is a happy 1 for her because she will be happy.
1. Her job means that she can help people, so she can fulfill herself with that. 2. She found a person she can trust and who she can love and that will bring her happiness.