What is the relationship between iron column and Xiuqin?

Husband and wife relationship. Because according to Jiangshan Literature Network, Tiezhu and Xiuqin come from novels, and they are husband and wife. Xiuqin has been busy every day since she married Tiezhu, including cooking for her family, feeding pigs and weeding. But Xiuqin still works hard, has no complaints and is simple in character.