The Avengers

(I just used the picture because I find it funny) Natasha is your best friend. you were always good friends through childhood until red room found her. (your past is up to you) you eventually both joined the Avengers and you two are inseparable. when you were kids you had a secret hill outside town that you could walk to and you called it "somewhere only we know" so no one would find it. you just recently found out your powers are killing you. you just told Natasha and she is heart broken.