It is a little wierd the way they have portrayed the situation of Madhu and Sarla. Sarla is still a child at heart and she has not matured enough to understand the relationship between husband and wife.
Sarla's mum is at fault here. She did not teach Sarla the ins and outs of a married life and then she expects her to win Amber over. If they waited for Amber to accept Sarla as his wife they would be waiting for centuries at this rate!.
Sarla is being treated nicely at her inlaws. Does Sarla's mum not see this? Even though Taiji is a strong character, she is not strong enough to protect her daughter....With this relationship it should be tit for tat and here its one over the other! Sarla is happy and Madhu is sad.