I wonder if they have some deeper connection in the past that the FL forgot or something. ...

I wonder if they have some deeper connection in the past that the FL forgot or something. I wanna know the POV of the ML from the past. it’s just from the memory of the FL, they didn’t have much interaction , its understandable in the pov of the FL that she has an affection for the ML cause he is the only one that believed her but from the POV of the ML, the FL is just an unfortunate soul that got corrupted by the demon sword. I cant quiet grasp why the ML is so into the FL, like he loves her from the past or what