Gu Xiaonuan could no longer disappoint Si Yuchen. He had already shown enough sincerity to her, so she needed to let him see her sincerity as well.
Gu Xiaonuan is someone who knows how to repay kindness. After all he's done for her, how could she possibly say she doesn't care?
If she didn't care, why would she have special feelings for Si Yuchen?
So it's clear that this current situation is completely different from the past, that Gu Xijue is not Si Yuchen, and Si Yuchen certainly can't become Gu Xijue.
The problem lies in Gu Xiaonuan's heart, where there is a knot.
This shadow causes her to instinctively hesitate when it comes to feelings.
Only when faced with emotions does Gu Xiaonuan begin to hesitate.
Gu Xiaonuan is no longer who she was, but what about Si Yuchen?
Si Yuchen's care for Gu Xiaonuan now is the same as before, with no change.
If there's a difference in their relationship, perhaps the nine-year age gap is the biggest one.
