Responses
Because nobody cares but Carsein, and Carsein knows that He is obsessed with Aristia, so He won't hurt her. Carsein is not that smart to think about how in the future some other persona can be hurt and that stuff.
The only one besides Carsein that cares is Aristia's father, that's why He acted against his friendship
I understand that Allendis is Aristia's friend, but he's throwing up so many flaming red flags that it truly baffles me how she doesn't realize something is the matter with him. I also don't know why nobody will warn her directly and instead they just drop hints or brush it off like Carsein does.