"Xiao Xia, did you... did you already know? That's why..." Lu You's words trailed off, clearly indicating something that Gu Xia instantly understood.
Gu Xia didn't hide anything, after all, she had known Lu You for many years.
"That's right, I did know a long time ago, but it isn't for that reason that I played along with the plan. I probably know even more dark secrets about Yu Xiuli than you do... Of course, I'm not that righteous. I risked myself to assist your Commercial Crime Investigation Department by selling myself."
"So why did you marry him?" Lu You's heart ached every time he thought of the word "marriage."
He truly regretted not confessing his feelings earlier... It was just a missed opportunity, and now his almost-bride had run off with someone else.
His master had subtly hinted at this when they were drinking together, mentioning that Xiaxia was of marriageable age.