Natasha: But, when it mattered most, my love for you won out! I freed myself from their insidious control! You— you must believe me!
Clint: I want to, Natasha! Oh, how I want to…!
And Natasha wasn’t “rescued” by the Avengers so much as she broke free of her KGB brainwashing in time to save Clint from certain chokehold. That’s the real story of Natasha’s redemption: she wasn’t saved, SHIELDed, accepted or trusted. But she did follow her own heart.
From Avengers #30, by Stan Lee and Don Heck.