Because the novel has not been finished yet, the two of them are together now.
He was with Bai Jin when he was quelling the rebellion in the underworld, and Bai Jin gave birth to a child for him, a girl.
Bai Jin is the girl I admire the most, so I think Qin Yu is a bit emotionally unfocused. He had love stories with many girls, and in the end they all got married or were with many girls. Fortunately, these girls all live together peacefully, otherwise it would be difficult to do it in reality.
I think as long as Bai Jin is happy, because she has fallen in love with Qin Yu, it is difficult to leave him, but she just doesn’t know what the ending will be.