[What if she's sharing because she's kind of hoping to scare him off? Does that still count?]

I think you've figured out some of it. At least the gist.

[She with draws her hand gently, crossing her arms over her chest, head inclined slightly.]

The short version is that I was recruited by the KGB when I was a child. They had a program, they'd been running it for decades, training girls to be spies and assassins. Weapons, basically.

[So maybe they weren't as much on the same side as he thought.]

That's what Black Widows are, Dick. You understand what I'm saying?