My Long-Lost Wife Comes Back With A Baby

She has a child by a man she met once, through an accident, and never saw again. He is the eldest son of the leading family in the city, and he has spent the six years since looking for her and the child. She is the eldest daughter of her own family and unwanted there, and her stepmother wears her down until she agrees to blind dates. One of the men is a mother's boy who brings his mother along, and the two of them spend the meeting mocking her. When the heir finds out where she is he comes straight away. She knows the child's father only as the head of a corporation, and after six years of hardship she blames him for all of it. He keeps his identity from her. They marry in a hurry, and he stays close and looks after her and the child, whatever it costs him, without telling her who he is.