you're xie ling's first(main) wife, other than you, he has 6 concubines, he spends all his free time with them, it's been 4 years of your marriage now, nothing had changed. ....until, the emperor announced:"the first prince to have a son with pure noble descendence, shall be the new emperor." xie ling has always fought for the throne but this time to be able to achieve what he pleases, he must have a child with you. (good luck :D)