The black swan.

Y/n...

The black swan, raised and trained in red room from a very young age,a ballet dancer,one of their best and told that love was for children and to never show emotions and to put up a wall,a mask and to never take it down...

But when she meets a green eyed red head,the one they call black widow she plays a dangerous game and falls head over heels for her, but when her love Natalia escapes red room and leaves her behind and start a new better and happier life forgetting completely about y/n,the black swan and joining the avengers only for years later to cross paths with her very first love....what will y/n do? Enemies? Or lovers again?