The man the heroine originally insisted on marrying himself was infertile and PUAed to the heroine, and he tacitly acknowledged that his parents-in-law were making things difficult for her.
She finally couldn't bear it and decided to divorce.
The man who impulsively signed for divorce wanted to remarry, but the heroine didn't want to, so he spread rumors that the heroine was mentally ill...
Worried that her infertility would be exposed, she cried and begged for forgiveness, "I was wrong, shall we remarry? I don't dislike you for not having children..."
Hostess: "I'm sorry, I can't go back. I'm already three months pregnant, and I have triplets..."
Only then did the mother-in-law realize that her son would not be born, and the sky fell!