This is super entertaining,
I think her thoughts and psyche were well explained too,
Her mother always did use her and treat her as a toy, and she snapped when she found out that her saying she cared at all was a lie just to placate her.
Whether the last bit is true or not, the mom did basically make her into this love deprived person and turn her obsessive about her perfection. So obviously she hates her. The girl is mentally disturbed pretty much, and it's not really her fault. Though her actions have no real excuse.
Fushi banging her isn't really the point and not at all a possibility before most of her problems get cleared up, cause otherwise she's just using fushi.
This arc is great, especially now. And I'll rate it even higher to negate people being oddly dismissive of it.
I'm also just happy that fushi is living in a peaceful world and isn't in that endless cycle already.
And people say it like the writer is bad but this thing is written by the silent voice author, I know that doesn't by itself count for much, but the writing quality and nuance is so obviously great, barring occasional stumbles.