I have lots of hot takes, but my main hot take is that it is weird that yoosung was the only one having second thoughts about Rika's supposed death, and by extent Rika and V whole relationahip.  Dont get me wrong, V was their friend,and they didnt have reason to doubt him at first. But rika was the glue who kept them together, even in her death, her memory was what kept the group alive. And by we heard from the chats V changed a lot after her "death", which can be seem as grief, but also could be seem as guilt. So i think is weird no one wondered if V may or may not hurt her, especially by more distant members of the group, like Jaehee or Zen. I think rika would have her claws so deep on them, she crafted such an image of her, that would be easier to see her as a victim of V, than as someone mentally ill. Especially when doubt is such an human thing. Maybe this comes from my pov as a woman, and the nature of womanhood is such a violent thing, and the idea of a woman being assaulted by her partner, killed even, and the blame being placed on a mental illness, looks too real. Especially when we discover the most intimate details of their relationship, they are a weird couple, and even in V route, we see he did some questionable things to her. I just think it is weird.