Xiaomei was forcefully dragged by Liuliu and couldn't refuse any further. When other family members talked about her or asked her to go out, she would just smile and then went back to her work. No one in the family could do anything, they certainly couldn't use force like Liuliu, could they?
And Xiaomei felt apologetic and grateful towards her sister-in-law. She was dragged by her sister-in-law and felt too embarrassed to insist otherwise, fearing that it would make her sister-in-law uncomfortable. So, she just complied.