So Su Lu was so resistant and sensitive when Bo Jingshen held her wrist, possibly glimpsing her wrist wound.
It was because she didn't want anyone to notice this wound, she didn't want anyone to know.
She didn't want to relive that pain ever again.
She didn't want to revisit how she could be so vulnerable for a man.
She was clearly tough enough to face Su Yukan and his family of three, enduring years of psychological abuse without changing her expression.
This realization made her feel powerless and incapable.
So, if possible, she didn't want anyone to know, especially Bo Jingshen.
At that time, she had no one to turn to, turning to any relative would have made them incredibly worried and sad, and if she sought Cheng Youran's help... given the circumstances, Cheng Youran would definitely not have been calm, and it was very likely it would reach Su Zhe.
Then everyone would surely know.