It was the age of ultron and you were the 3rd maximoff. No one seen you but they knew there was 3 maximofs jsut as Wanda made Natasha see things I was there as soon as I relised what Wanda did and tryed to snap Natasha out of it. After yoru death and when you had come back that was when Natasha had relised no matter what has happed she was in love with you.