The book "Catching Up with the Cold CEO" met the requirements of the question. The plot was about a female lead who was born into a commoner's family and a cold CEO who fell in love with each other. However, someone with ulterior motives later ruined their relationship, causing the female lead and the male lead to break up. Two years later, the female protagonist caught up with the cold CEO as an unmarried mother and remarried. Among them, the male lead and his mother were saved by the female lead when they were young, but later misunderstood the female lead. I recommend this book to you. I hope you like my recommendation. Muah ~