Sensor's Links
They were actually childhood friends before they became rivals. However, although Arrow was more nice. He still was pretty abusive to him. Example, as kids they would play cops and robbers. Sensor was never allowed to be the cop and was always the robber who had to run from Arrow while he chased him with a knife. However as both of their dark childhoods take place, the two eventually separate. Now adults, Arrow came back to torment Sensor for just no reason other then it fills him with joy. Sensor is just trying his best to stay FAR AWAY from this man.
Arrow and sensor…. Oh boy- arrow takes SERIOUS joy in hurting sensor. It fulfills his purpose in life to watch sensor hurt. Their first meeting together is when Arrow tried to kill him (such a beautiful story-) to this day Arrow tries to hurt this poor kitty witty until he is in a closed casket