"...she now knew and was loved by an achingly human part of the war machine she sought to destroy. If only he hadn't been so persistent. If only he had been as heartless and brutal as the rest of them."

And that's them in a nutshell. I think that's why she as so aggressively stand-offish with him. In her encounters with other Nazis she's distant and polite but with him she's much more in his face. I think she reacts that because he wouldn't conform to her ideas of what a Nazi was and that pissed her off. Anyways, write more soon! I really liked this.