6 months later,
Not everything has changed in eastern territory, the concubines and wives of prince Yuxan Wei have discovered that Yu Yan is princess of the Tianxian empire and is also a cousin of their husband. But the worst thing they discovered is that their husband loves his cousin and visits her everyday.
He never thinks of visiting them as he never did before in the past too... They were just jealous of Yu Yan because she was now getting married to Prince Yuxan Wei. And that too fast like she was waiting for this moment.
On the other hand Xiu managed to escape out of eastern territory but he never returned back with help. Chu assumed that he must have been caught and imprisoned. And they can't even ask about Xiu to Prince otherwise he would have made tough of Yu Yan to survive.