Shen Biran's disappointment with Gu Qingyuan mostly stems from his past feelings for her.
There were feelings between them, but those feelings encountered significant problems.
So after their feelings ran into trouble, they could no longer explain whether there were still feelings between them.
Shen Biran wanted Gu Qingyuan to be friends with her, but this friendship was ruined by Gu Qingyuan's foolish actions.
Shen Biran didn't want to see Gu Qingyuan doing such foolish things, but he insisted on doing so.
What result would come from his actions? Let it be for now, as they can't even be friends anymore.
They can't be friends, let alone good friends.
But their situation must at least remain as it is now, or how will they solve the troubles left in the past?
All the trouble was caused by Gu Qingyuan alone. If Gu Qingyuan could think things more clearly, he probably wouldn't have made such a judgment.
