Guys pleas i need help to find a novel that has been sticking inside my head

It's a Chinese novel.
The story goes like this: The mc reincarnates in ancient china as a princess. She has a twin who is beautiful, loved smart, etc unlike her who is plain.
She keeps just staring with dead fish eyes, doesn't cry like normal babies and other things, so people think she is a fool, dumb however she knows a lot of secrets of people around her.
The only one who knows that she is not dumb is hr cousin. He was going to kill hr at one time because she saw him murdering someone but decided not to because when she looked at him it was like she was looking at someone through him.
She actually has a boyfriend but before they married she found herself ill (cancer I think).
She started taking treatments and was getting better when she discovered that her sister was pregnant with her boyfriend's child (it was a mistake, he thought her sister was her and slept with her).
She went to their marriage and died there.
Anyone know the name of the novel?

 

It should be : Grabbing Your Hand, Dragging you Away

 

Thank you soooooo much