"That lady said it was you who offered to pay for her bill today, and we had someone hear your conversation at the time. That's why we didn't stop her when she left.
If you hadn't said you would pay for her from the beginning, we would have definitely asked her to pay for herself and wouldn't let her go." The cashier knew Gu Beilin's character well.
She relied on her family's wealth and power, bullying others was a common occurrence. So the cashier cooperated with Qin Xue to teach her a lesson, letting her know not everyone could be trampled on by her.
"I said it at the time because..." Gu Beilin looked at the onlookers around her, how could she say she just wanted to humiliate Qin Xue and never planned to actually pay for her?
Gu Beilin stared at all the important-looking people around and couldn't bring herself to say it, otherwise, her family would know and surely not let her off the hook.