All teachers and classmates was torture him and everybody have two form one is good and one is bad and it's our choice to choose and because of all these things Ruh choose bad and half he was already a beast. He choose bad side because he saw Raj talking with classmates that he just used him for his safety after listening this he was broken and angry. Now he knows that Raj just used him for his safety and for friendship. Ruh hates Raj. Ruh also act like his best friend for taking revenge. After 15 years Ruh and Raj was 20 years old. Ruh take Raj to a black scary forest and he show him his real form. Raj was shocked to see Ruh . Raj said please leave me I an your best friend please. Ruh said I knows everything since 15 years that you used me for your safety . Raj said sorry!! Please don't kill me he tried to run but he was freezed. Ruh kills RajRuh's aim was to take revenge from Raj and his aim was completed .Ruh don't want to live beast life he wants to live a human life so he kill himself .