Wrong Number Kid (Avengers x y/n)

Y/N is a normal teenager girl ( well if you say that normal is having an abusive family, powers because of torture in hydra 'cause your family literally sold you to them and was trained by the red room before being adopted by your "family", but you know, that's normal) and one day she texted the wrong number and it was one of earths mightiest heroes, how will she react when she finds out and how will the avengers react too?