AAAAAAAAAAAAAA this scene hits me right where I goddamn live, and it really does justice to both Gangle and Jax's characters.
Even though she wants to feel sorry for her because being abstracted is such a terrible and horrific fate to suffer, she can't bring herself to do so because of how terribly and horrifically she treated her. It shows that she knows that even a person like her doesn't deserve to abstract as some kind of punishment for everything she's done. But how can she feel bad for her for everything she's done? For how cruel and malicious she was to her from the very moment she entered the circus! And the damage it did to her mental and emotional well-being!
And what I also love about this scene is that it reinforces the theme that, despite all of the hurt that she's experiencing (even before she abstracted), it doesn't automatically excuse the hurt she chose to inflict.
P.S. Also love how Zooble is comforting Gangle!
[Edit: After seeing Gooseworx confirm that transfem jax is canon, I edited this so that Jax is referred to with she/her pronouns]