I believe that Zheng Juan is truly kind and sincere to treat and love Zhou Bingkun and the Zhou family, she is gentle as water, opened the hearts of all the people in the Zhou family, changed the attitude of everyone in the Zhou family to themselves, I think she is not the intention of many people who commented. We can't maliciously speculate or interpret a person's sincere diligence and kindness just because she is getting better and better, which is a kind of morbid jealousy.
I like Zheng Juan as a person, and she often stands silently behind Zhou Bingkun and the Zhou family, not arguing, really making people love and feel painful.