~Emma was Tony Stark's daughter but when she is kidnapped by hydra when she was little, her father was broken. When she came back she was an assassin and the Avengers just wanted to help her just like they helped out the one and only Bucky Barnes. He was the one who wanted to help most since he dealt with he same thing she did. That's when they fall in love with each other and she becomes her normal self again. Well mostly normal self.~