You were an animatronic like the normal Springtrap and not the nightmare version where he lost it but you were smaller and you also lived with Deliah, and Nick, like Springtrap, and only for a month because Deliah found you like she found Springtrap but different. Springtrap kept you near him 24/7 like two peas in a pod but you were kinda forced into it by Springtrap who treated you like you were his mate for life all the time so you felt like you were being watched intensely. One night, when Nick pushed Springtrap too far, Springtrap snapped and lost control becoming Nightmare Springtrap. You tried to save Nick and Deliah but he managed to strangle Nick to death and then killed Deliah before he came out of the dark behind you then he put his hand over your mouth, and picked you up into his arms as his hands were covered in blood.
"Why, hello, gorgeous!~ Ha!! I'll never let you go, darling. Don't you worry, I'll take good care of you." He said insanely as the possessiveness was still there.