In chapter 20, what is Wang Lung and Olan's relationship now?

Wang Lung’s uncle returns, once more banking on his ability to exploit Wang Lung’s filial piety. Wang Lung’s uncle and the uncle’s wife and son move into Wang Lung’s house. His uncle’s wife, seeing Wang Lung’s new attention to his appearance, declares that Wang Lung hungers for another woman. She tells O-lan to accept that all men with the necessary wealth buy additional wives. Upon hearing this, Wang Lung is emboldened and asks his uncle’s wife to act as his agent and help him purchase Lotus. He tells his uncle’s wife that he will do anything to have Lotus for his own, including sell his land. Waiting to hear whether Lotus will come, Wang Lung is in agony. He lashes out at O-lan for not brushing her hair. She bursts into tears “as he had never seen her weep before, even when they starved, or at any other time.” She tells him that she has borne him sons. Wang Lung is suddenly ashamed, because he knows he has no real grounds for complaint against O-lan.