You are Barry Allen's sister. You were only 1 when your mom died and your dad went to jail for her murder. Since you were a baby you got sent into foster care while Barry went to live with Joe and Iris. You are now 20. You live in Star City but just happened to be visiting Central City when the Particle accelerator exploded.

Oliver: "I had her!"

Barry: "You were gonna kill her. We still need her!"

Barry saved you from Oliver killing you even though he didn't know it was you. You got pretty badly hurt and when you went home to your Boyfriend...Oliver Queen, he realized you were in some pain and was very worried since he doesn't know you are a Meta-Human