Prodigiously Amazing Weaponsmith

He thought she died, but she didn't died right? What really happened to MC?
Oh and one more thing, after Doctor Liu revealed what happened (that ML and MC did the deed) and cuz that ML could breakthrough and MC "died", MC's father was really furious right? And ML was saying for they leave quickly the place, why? I read a bit but that got me confused. 

Look at the raws using MTL 

I also want to know how she takes revenge on her family and how she deals with the fiancé 

Where are you guys reading the later chapters? Like the chapters 700 and beyond? 

Two elders know that MC is quite strong since she soared one year after ML. However, if MC is compared with Leyun's strength, status and origin, MC is far below, thus she cannot be the main wife.

MC has yet to reveal that she actually is the genius refiner. I believe MC can defeat Leyun if she will give extra effort if they battle. ML also cannot reveal that MC like him has god-class talent. Even if MC reveals her real strength, but if Yunlin clan knew her origin, they would definitely have objections too haha. 

What happen with MC's fiance in paper? And her relationships with the palace? Who is ML really? And when their interactions will be more? 

Oh thanks 

SpoilerThere will be a banquet for choosing the Crown prince wife. MC will say that there's an agreement that she will marry the Crown Prince. The queens side will say that the agreement for marriage between the Bai clan and the royal family is that the two strongest child in the family will be married. Since they believe that MC is a waste, then the cousin as the strongest female will marry the crown prince. However, MC will challenge her cousin and will win. Before MC could cancel the engagement, the ML will challenge the crown prince and will win, heavily injuring the CP. Thus, MC and ML would be engaged since they are the strongest.

The ML is the second prince, he is the less sovereign in his sect. He is MCY in his past life.