How she fell in love with that man she couldn't remember, and he even forgot about her.
She only knew that she could do anything for him, even at the cost of her life, and even if he never held the woman he loved with disdain.
He should know that he owed her a lot. It was said that she saved the woman he loved most, but he thought she hurt that woman.
She traded her life for his, but the first thing he cared about after waking up was not her.
Maybe after all, he couldn't let him remember the woman he once loved deeply. In the end, she seemed to have lost to the woman who was as gentle as a pool of water.
That's it, so what if she leaves, it's just a lifelong obsession.