I am so sorry this happened to her. I hope her mental stability increases in a positive manner and that she begins to feel like her old self. It's amazing she has an older brother to look up to and keep her safe! Leaving sites for safety regarding mental health is always an option and no bad feelings should be felt for needing a hiatus, whether it be permeant or temporary. I hope you're doing well, too, as I know finding your sibling (or anyone close to you) in a situation like this is heartbreaking.