Their situation has shifted

What's worst, Marlene have forgotten to add on their pledge that Li FuJin cannot kill her, but the way he protected her when YuYan came made her believe Li FuJin will not hurt her. 

Moreover, with her son that looks like YuYan, Li FuJin could have guessed that her child belonged to YuYan's family, which means Xi'an is YuYan's nephew. 

And as for Lilo, he just chuckled like he was not surprised that YuYan discovered Li FuJin's secret, but there was a flash on his eyes that no one noticed. 

"How did you know?" Li FuJin finally speaks, he ignored Lilo's reaction that obviously aware of his nature, but his heart still pumping fast while waiting for YuYan's answer. 

"I tasted it! Just like Xixi when I bite him! And..." YuYan cutely explained and seems thinking. "Like daddy and... Like... Like mommy." She still sounded like a child. 

Marlene: "..." She also bites her pet aside from her parents?! 

Li FuJin: "..."