She had the intention of letting him go, but he wouldn't leave her alone. If she didn't do something right now, she might miss this great chance to punish him.
Gu Ning put on a vague smile and said meaningfully, "Qi Ziyue, aren't you trying to keep your position in the Tang family by being together with me? I know Tang Yaxin is your real girlfriend. You refused to have sex with me, not because you respect me, but because you don't want to anger Tang Yaxin. If she's mad, she'll abandon you, and you won't be able to take revenge."
Hearing that, Qi Ziyue turned pale in an instant. Gu Ning really knew his dirty secret which even Tang Bingsen and Tang Yaxin were unaware of.
The next second, Qi Ziyue became aggressive and even had the idea of killing Gu Ning.
Since Tang Aining found out his dirty secret, he couldn't allow her to live. If she told Tang Bingsen about that, his plan would be totally ruined.