After watching the trailer for the 17th time, I think the FL will regain her memories and not say anything until she gets her revenge. Tbh I think it's fair because he used her then she will use him and afterwards they can work out their issues.
Telling her that they were married was a bit too much of a lie. I mean the girl lost her memory all he needed to do was to keep her close till she led him to Ziyu. He could have lied to her in so many different ways but he chose the most complicating one😂
It's funny how they're both trying to outsmart each other😂. But boy does the ML know how to lie, this double life his living seems like his having an affair 😂 because if he was he would have gotten away with it lol