Thanks for your reply! It gave me the courage to go through those horrible chapters! The ending was sweet~!(▰˘◡˘▰)
I may say Jing is sadistic person. In the novel, between ch 1-5 he said he likes Lu Cang because only Lu Cang is compatible with his S nature in bed.
7,8,9 are the saddest ch ever on the manga but from 10 Jing will change and stopped being sadistic. I don't mind giving you spoiler if you want.
If you read the novel, I recommend you to read again from ch 1. Because you can understand each character better like what actually they think in their head, etc.
I think it explained that their sex getting better, like no rape or rough sex after ch 10. There is one more punishment sex, and Lu Cang left Jing, but then Jing cried on Lu Cang feet and asked Lu Cang to come back to him. So they made up. But I hate it when he still having babies when he already has an heir ┑( ̄Д  ̄) such a bullshit
You are absolutely right. It tore my heart out reading those chapters but it did got better. That's because even though Jing slept with a lot of people, he doesn't have a lot of experience with love.
Spoiler below (don't look unless you've already read the novels)
Its been awhile so I can't remember well but did they ever clarify his relationship with his uncle?
As in, if Jing really did love him? I mean I'm sure he was infatuated with his uncle in some sense, but it wasn't love, was it?
I think it's not very explicitly explained. But on chapter 11 when jing explained his reasons to lu cang that was time lu cang said "he afraid he fall in love so he torture me" something like that along the line. Maybe jing was infatuated but not love. So when he lost his desire to his uncle he blamed lu cang that made him feel that way
I cannot read past chapter 9 of the novel! MY HEART IS HURTING. ╥﹏╥