Shu Yu suggested that Si Yuchen wait a bit longer to see what Si Lingtian's real intentions were.
Si Yuchen has no time now, otherwise, he would have taken Shu Yu's advice.
The issue of divorcing Gu Xiaonuan is urgent, and Si Yuchen can no longer afford to wait for Si Lingtian's next move.
Although Si Lingtian's actions are baffling, the fact that he would sacrifice a newborn baby to achieve his goals shows that Si Lingtian is a person who will stop at nothing to get what he wants.
As long as Si Lingtian's goals are met, other people seem less important.
"When there's further progress with the situation, we'll discuss what the next step should be. The current approach is not the best after all. He's your grandfather, and I think Gu Xiaonuan will hate you even more when she knows your child is still in danger."
Used by Si Yuchen and schemed against by Si Lingtian.
It could be said that Gu Xiaonuan has every reason and standing to hate both Si Lingtian and Si Yuchen.