All along, when others insulted her or bullied her, she could endure as much as she could, but the one thing she couldn't tolerate was when they targeted the people around her. The ones she valued, the ones she cared about, she would never let others bully them.
Just like back then, when Gu Ningyi used harsh words to ridicule Ziyang, she wasn't afraid to fall out with him.
Now, Tang Qian had touched her bottom line, and she couldn't endure it anymore.