just means they will have to accept their fate and are meant to go separate ways.
I just think its weird she waited so long to ask her shifu for an explanation of what happened in the past. And they keep interrupting the reveals at the worst point which is super annoying. It just feels like they are dragging out the plot.
Pei Yan is really despicable to use the emperor force Jiang Ci back to the palace where she will be put in a gilded cage. He knows she loves her freedom but he keeps trying to lock her up. The guy is a scary control freak who is only fit to be the head imperial prison guard.