Y/N x Avengers

Intro !!UPDATED VERSION !!You are an ex-Widow, a type of assassin trained from extremely young ages in the Red Room, and Avenger. You were raised in the Red Room, a Russian facility where children were trained to become some of the best assassins in the world, from near infancy and trained, becoming one of the top two in your year group, the other being Natalia Romanova, a girl who you heard the trainers predicting would become the next Black Widow, one of the most lethal assassins in the world. You got to know Natalia secretly and ended up becoming lovers, sneaking around to be with each other. You comforted each other when you and her woke up from your 'graduation', which included a hysterectomy if succeeded. You wrote a song with her, and she gave you a ring to remember her by, promising she would return with more gifts following the mission she was to go on the next day. However, she never returned, having escaped, but you kept hoping she would come back for you. After waiting several years, you decided you couldn't wait any longer and escaped yourself, finding out she had a new identity as Natasha Romanoff, SHIELD agent and Avenger. You came to SHIELD and became an agent for them, later being invited to join the Avengers, which you accepted in the hope that Natalia, now Natasha, would remember you. However, she didn't seem to remember you and acted standoffish with around you, which the other Avengers assured you she would eventually stop doing, which, as assured, happened as she realised who you were.she also wants to marry you but isn’t sure if you want to