This novel was called "Strong Marriage: A Hot Wife Is Not Very Good", and the author was Xia Xiaomeng. The story was about the female protagonist who became a sinner because of an accident and was hated by the male protagonist. In order to save her child, she had to escape. Five years later, they met by chance and became his prey. In the end, she and her son both died, but the male protagonist went crazy because of it. I hope you like my recommendation. Muah ~