I'm starting to think that Bang is going to get Zeetha at her mercy, announce that she *ought* to kill her because of what she did, and then forgive her. It's not the Bang we know and love, but it's where this looks like it's going. Catching Zeetha so she doesn't get hurt is way out of character.
Da Boyz are not going to let Bang kill Zeetha, of course, and Higgs might have an opinion. Does Bang know they are there?
EDIT:
First panel, Bang is looking over her shoulder rather than watching Zeetha get smacked. She knows. There is now no chance she'll try for her revenge, and the reason she's acting out of character is because she has an audience that she really doesn't want to mess with.