My guess is that its either locking away a trauma that she experience when she got back to the locked tower or that she ended up having a really bad fever and she lost some part of her memory.
Good guess. My second theory was as we just saw she can see the past and she can also see to the future. Plus I thought this whole time her and tarkan were the same age or he was older. And if that really is the case, that means she traveled to the future through the Emperor’s eye to go save him and then got sucked back into the past after she did what she needed to do. But in doing so she received some type of backlash like a fever or something and then obviously her father is a total fucking weirdo so he might’ve done something too
So basically, while she was sick, she awakened a new part of the Emperor’s eye which basically gave her an appearance that was similar to her younger sisters. she traveled through a mirror to tarkan to save him because she liked his resolve to live. Tarkan became obsessed with her but doesn’t know that she’s his wife now? But she also locked away this memory so therefore, she can’t even tell that she met him and saved him as a kid ??