What is the ending of the new pearl return?

After fleeing, Swallow took Xiao Jianban and Qi to Dali and returned to the palace in May, because he wanted to give his mother and Xinrong a child and a sustenance. He signed a two-year agreement with Swallow. At first, he couldn't think of swallows every time he prepared a perfect marriage with Xinrong. Later, Mammy Gui gave Xinrong an aphrodisiac nightcap, then Mei drank it, and finally made Xinrong a swallow. Later, Xin Rong gave birth to a son named Mianyi. After his son was full moon, he went to go to dali to find a swallow. Then Ban Gui left a letter and ended the threesome ... I was moved, and Ban Gui's waiting without regrets touched the affection between May and Swallow. Unfortunately, the ending was a bit unsatisfactory. I didn't see their grand wedding, nor did I see the fragments of their happy life together, until a group of children around me.