Who Was the Sinister One who had Pushed Her in the First Place?

Ye Yuwei was perplexed. Her sixth sense suggested that this man had something on his mind but she couldn't make Gu Juexi talk.

"Gu Juexi, the late Auntie Mao used to say, no matter what, we cannot expect others guess because we cannot read each other's mind. So I hope that if there's anything bothering you, or if you have any problems, you know you can tell me," Ye Yuwei said and pushed herself out of his embrace, looking at him intensely.

Gu Juexi looked into Ye Yuwei's earnest eyes and raised his hand to touch her face. "What have you been thinking of? What's the big deal, you are by my side all the time, there's no way I can lie to you. Let's go to Master Yao Lao."

Ye Yuwei was pushed lightly by Gu Juexi. She stumbled a step but was quickly pulled into Gu Juexi's embrace. "See, you can't even walk properly. What would you do without me?"

Ye Yuwei was furious. 

Who was the sinister one who had pushed her in the first place?