Autism and Sick Love (Yandere Krul Tepes x Autistic Male Reader)

(y/n) is a smart and autistic boy. He was 9 when the world came down. He met the other orphans and was like a friend to Mika even though (y/n) was from a different orphanage. After 4 years since Mika turned, they met each other again. Mika defends (y/n) when need especially from Ferid. Krul soon finds out about (y/n). It was first an interest then to obsession. She wants (y/n) all to herself. She would kill anyone that would get in her way or try to separate her from (y/n). What will (y/n) do when he is autistic and has a powerful vampire queen who sickly loves him?