Although they divorced, the Tong Family still wielded power within the company, so Mrs. Tong held a senior position there and owned shares, often participating in the Xia Family's activities.
Because of their two children, she even got involved in the Xia Family's clan affairs.
Furthermore, the elders in the Xia Family had always recognized Mrs. Tong. They believed a couple's quarrels were common and divorce was merely a rash decision. The children were still there. Their mother would sometimes be invited back by the old Xia patriarch for dinner, or to take the kids out over the weekend.
In fact, during the days when Wen Qunxiao wasn't in China, there was a period when Mrs. Tong even assumed the role of the family matriarch.
Of course, all of this was against Xia Youbiao's wishes. But his reluctance was in vain at that time, as his father was in charge of the household.