Winter13
She's a child. She's not even a child. She's a concentration of cosmic energy that got used and broken and slammed back together and had no proper idea how to even act like a proper being because Maria Hill and Red Skull were manipulating her for whatever twisted agenda. What she was used to do to Steve was messed up, but we fixed it before he did anything. It's not comparable to what you were forced to endure, what you were forced to do under their control for decades.
It's fine for him to feel hurt by your decision, because I fucking know I'm hurt by everything that's happened to and nobody gave a damn, but he should have talked to you about it when you were an adult and not when you were at your most vulnerable.