Du Qingyu's eloquence is indeed impressive, almost making Su Hongxing think she was inferior.
"Su Hongxing, stop pretending. The whole of Taicheng... no, the entire nation knows that you were abandoned by Ye Qilan back then, kept as his secret lover. This fact is known by all. Even if he reverts to his past behavior one day, dumps you again, and marries another wealthy lady, it would still make sense." Du Qingyu sneered at Su Hongxing.
She hoped to hit Su Hongxing's sore spot, to make her feel miserable. Contrary to her expectation, Su Hongxing appeared calm, seemingly fully letting go of past events. At least on the surface, Su Hongxing was unfazed.