I must be missing something. Didn't she inherit the shop? Like she literally owns it? So why is she trying to work as a prostitute at the shop? Why isn't she training to be a businessperson, since she owns the shop?
Even if he seduces other women, doesn't share her affection, does everything he can to hurt her, she still wants to be with him?!? Holy fuck that is unhealthy.
Setting aside the supernatural elements, this is turning into an incredibly toxic relationship. She keeps trying to submit herself to him, and he keeps being as callously cruel and devaluing of her as possible, which somehow just makes her even more desperate for his attention and false...
I can't figure out what exactly it is, but there is definitely something(s) incredibly wrong about the relationship between these two, and the fact that it's being presented as a lovely or cute dynamic is extremely unsettling.