They are two entirely different people, to begin with. Obviously, there is no way that Han Leng would be obedient like Su Li, who unconditionally gives in to Lady Zhao all the time.
Before this, he had only complied with Zhao Youyue's suggestions. because he felt like they were useful and would make his story appear more interesting. The prime time for Han Leng to write anything is when he really feels like it, and feels the itch to write, especially when he has to write something about Chu Luoxun. This was because Chu Luoxun had her own unique interpretation of the story, and getting the right feeling before he starts to write really helped him portray it more accurately.
However, when Zhao Youyue's suggestions clearly went against the storyline that he had already decided on, he would never even consider accepting them!
