Yu Dong of course didn't want to let go of Mu Yuxi so easily but she also knew that she couldn't just kill her, so this was the best way to get rid of her. Even if she wasn't willing to let go of Mu Yuxi, she had to suppress her instincts and let the law do its work but of course, Yu Dong was all about ripping Mu Yuxi's guts and feeding it to her but she was once an honest officer, following the law was in her blood, unless the situation calls for it she wouldn't unnecessarily kill anyone. In the end, even if she was not reconciled, she still nodded to Chu Chang's suggestion then she turned around and walked away.
Now that the matter was solved there was no point to lurk around here and watch, she needed to return to her groom and marry him!