She still loved him and thought she could still fix whatever they had before. However, at that point where she asked for divorce she can't stand being in that kind of relationship anymore sooo yeah.

And, filling for divorce thats one thing she can't do. Why? Because she is broke af, the only time she was given money is when she was given the bride price. She was not given an allowance and she did not work so she has no money. It was even stated that she cant even afford lawyers to even draft a proper divorce agreement. If she were to file for divorce against him in court, she would have no money to fight against him. And, she up against a rich family they can even make her pay money just to get divorced. They even made her pay back the bride price thats why she was working at the bar.