Why did Qin Shihuang's mother sell the house?

Qin Shihuang's mother sold the house because she wanted to stay away from Ada. According to relevant public information, Wu Xiaoceng married the second-married old Qin and gave birth to Qin's daughter, but Ada, the old Qin's ex-wife, has been living upstairs, which has become a thorn in Wu Xiao's heart, but Qin has never been married before, so he doesn't want to do it again. After Qin Shihuang got married, he hoped to stay away from Ada and move closer to Qin Shihuang. As a result, when he was going to sell the house, he realized that the property ownership certificate actually belonged to Ada.