Finally! He was getting pissed off enough to fight back. Ana obviously thought she was in the right here, but she still didn't want him to just accept it. She wanted him to lose his cool, to break out of his shell entirely and stop being so damn proper.
"Well, obviously you missed a few words because I did tell you what the point was. I specifically said I was asking because there was a chance that it could happen next time I fed off this particular woman." Ana gawked at him for a second as he alluded to how confusing he found her. "Goddammit, Adam." She fumed in her spot for a second before she stalked in after him. "I'm not the fucking Riddler. I don't know what you want from me! How much clearer can I possibly be?"