Selina thought it was cute, this woman giving her permission to do anything at all. If it wasn't for the little boy Selina was carrying, she would have already laid the woman out, one solid kick to the stomach, Selina thought, was all it would take. Doing this without coming down from the Hell that was Arkham was, maybe, not the best idea she'd ever had. But the kitty's life was filled with risky-bad ideas; she was just very, very good at improvising.
The dog, even through the door, was starting to get the message that something was wrong, and the barks became ominous growls. Selina never did like dogs. Gus was reaching for the closed door over her shoulder, and she had no option but to move forward. Even the unknown woman's use of her name didn't stop her progress; if anything, it made her wary. She had ended up laced tight because she wouldn't give her name at Arkham, and this woman knew her on sight. No one knew Selina Kyle on sight; she wasn't Bruce Wayne. "You don't want me to take you down while he's watching, do you?" she asked, and there was something tight and tired in the question, something likely explained by the loose jacket straps that Gus was playing with over her shoulder as he tried not to cry.
She moved forward, intent on getting through that door one way or another. Hopefully, the unknown woman would move over. If not, then a shove to the shoulder should do the trick. As she moved, Selina whispered in Gus' ear about the fact that she wasn't going to hurt him, because she wasn't going to. Selina was still young enough that she remembered what it was to be small and scared. She didn't actually like the pup, but she didn't want to scare it, either. "Move," she ordered, as she approached the doorway, ready to walk right through the woman there if she needed to. Finch was clawing at the door, only seconds away from freedom, and Selina really didn't want to be in the room when the dog got out.