He raises his eyebrows, but the question makes sense and is fair. The pause as he drinks again is as deliberate as the pause before, an I'm not answering this because I have to answer thing as much as it is selecting a way of presenting the information so it'll make sense. So much of who he is depends on contexts that don't exist here.

"Stephanie and I were associated with and trained by the same person, sort of. For a while. And at different times. I don't know what she's told you about herself, but we were both vigilantes working in Gotham, which is a shithole of a city and has a bunch of costumed psychopaths running around as well as all the regular scum you find in any shithole city. But it's my shithole city, so I kill them when I find them, and when more rise up in their place I kill those too."

Jason takes another drink. "And Gotham isn't as bad as here. Not by a long shot."