The reason why Prince Qui was very insistent on making Princess Yingyue apologize was because the lady that they were talking to earlier was the daughter of the lord that was protecting the outer part of Heping. And since they were much at the end of Heping, who could say when they would jump ships and stab Heping in the back?
The least that he could do as one of the generals was to make sure that they would not lose allies because one of the daughters got offended by the now somewhat notorious princess.
"How's the married life treating you?" asked the Crown Prince by his side. He had the tone of someone who was looking forward to hearing something funny. The Crown Prince was not going to be disappointed.
"It's one thing that I was given a wife when I don't want one. It's another thing that I was given an annoying one."
The Crown Prince smiled at his brother's demise good-naturedly. "It'll be fine. You just have to let the waters settle."