Danjo-hi 1:5 no Sekai demo Futsuu ni Ikirareru to Omotta? ~Gekiomoi Kanjou na Kanojo-tachi ga Mujikaku Danshi ni Honrou Saretara~ - Vol. 1 Ch. 4

[evilguacamole]

My take: she isn't a "yandere". In this world, women largely have the power and limitations men normally do. Yandere subvert the expectations of women's submissiveness, pacifism, and being the object of desire, not the pursuer. That's not what's happening here. This is a stalker. She can't have what she wants, so she's violating his privacy. She's not crazy, she's a creep.