No, this was more than a secret; this was a lie and a conspiracy!
That night, he thought that he had done the wicked in his drunken state and had felt indebted towards her, so much so that even though he couldn't let go of Song Qingchun, he felt an immense responsibility towards Cheng Qingchong. In the darkest hour of the night, he would wake up from his nightmare, shaking with cold sweat, unable to fall back asleep, caught between two impossible situations.
After their marriage, he had treated her well. It was not only because of the baby in her stomach—to be completely honest, the baby was not a child of love, so he didn't have that much of a connection to it. He treated her so well, not only because he felt guilty towards her but also it was what she deserved.