Su Mu was not a saint, nor would she forgive those who had intentionally harmed her in the past. She also held grudges, and could not easily forget past injuries.
However, this did not mean she could just stand by and watch a living being wither away before her eyes, especially due to her own actions. Therefore, she couldn't leave, nor was she able to leave, at least not until she confirmed that Zhou Yaxian was safe. As Zhou Yaxian had said, if Su Mu were to leave and something happened to Zhou, Su Mu feared she would never find peace for the rest of her life.
Fu Shinian might very well be aware of what Su Mu was thinking at this moment, but the thought of the possible consequences if Su Mu stayed made it impossible for him to care too much. Seeing Su Mu's refusal, his gaze grew colder and colder. Although he desperately wanted to take Su Mu away regardless of everything, he still patiently explained to her, albeit with a less than pleasant tone: