Tang Moyu didn't have any idea how to pacify her best friend as she was also too heartbroken from losing the only brother she had. To lose Tang Beixuan like this, she couldn't believe how useless she was for not being able to help him, save him at all. If she had paid more attention to their circumstances, she would have known that everyone dear to her would become targets, not just her and the twins.
What's the perfect way to destroy her, ruin her was to use the people closest to her? Just as she thought that her life was finally going well, her fate reminded her of how weak she could be. Those people who failed to protect their loved ones when they had a chance were either cowardly or a weakling and Tang Moyu knew she fell into the latter category.