you were a HYDRA experiment for almost two years, you were treated poorly, abused. You spent most of your childhood here. you were a strong child, with dangerous powers, as you learned how to stand up for myself.

One day, the Avengers decided to raid the HYDRA at night. But they were caught by the agents, and sedated, before getting locked in a room with you. They were tied to chairs, you weren't though. Your blood was boiling, but you were hiding it. they probably think you're just a brat, or a pesky teenager...