I think the Crown Princess was pretty devastated by his "death" but the prince might've had a hand in it and used her? Either way the little marquis is definitely her inverse scale. Love how the side characters in this all have depth, motivations and plots that interweave with the main plot but also make the characters that much more real.

@J Doe, I don't think so because there is a chapter where Xiao Liulang remembered how someone which I think is the crown princess, saying that Ah Heng will u die for me

Agreed. I think she parricipated in his murder to clear her way to become empress.

Yeah, she have aura that says she's very vain. It's not the two face one. It's more of a hypocrite? I mean, she went to marry her ex fiance's cousin, yet she meets up with her ex father-in-law with an attitude that she was very sorry about it. It's not that it's wrong, but since you decide to move on, why are you still mentioning it to the father like that. It's like she's pointing out it's not her fault, but by doing so, she sounded guilty. Also, aren't you afraid your new husband will think you still have feelings for your old flame.