If anyone here has seen old Hindi films, they'll know that this is an old theme, where the groom does not like a bride who is forced on him, and he tortures her and then she wins him over with her innate goodness. Unfortunately in real life, a violent husband (and he may not be hitting her, but he is violent) is not likely to change if he can get away with it.
Bindiya has been so submissive from the start, accepting that she has to give dowry, allowing her family to get her married in that way, and now tolerating all kinds of bad behaviour from her husband and in-laws. She used the old doli to arthi line when her father had tried to take her away. She is an old-fashioned adarsh Bharatiya nari. It may make for a good story, but Bindiya is not a good role model for young girls, who need to know they can take some sort of control of their lives.