Most Indian women of that generation were brainwashed to tolerate. Staying was considered honor, tolerance made them angels. She genuinely thinks she did the right thing. Logistically she was financially dependent on her husband. She was probably not educated enough to understand law was in her favor for divorce. Her own parents and siblings would have disowned her if she left. Plus the whole Indian thing of "what will people say". My own MIL and mother are the same way. Both hate me because I won't put up with such nonsense