While luring in 6 children to kill, you were there too.. being one of the targets.. and..after killing the 5 kids.. he didn't seem to want to kill you? So he basically took you home

Yes, the child murderer William afton took home a child around 5-7

it was a boring rainy Monday, and you were colouring in a picture in your colouring book as William sat on the couch, looking at animatronic blueprints

He probably didn't even read the prints, just staring at it out of boredom...