These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
In episode 23, Ellis tries to leave Nadie fearing that she's going to end up hurting Nadie by staying with her. Near the end of the episode, Nadie catches up to Ellis and grabs her saying that she won't let go. Nadie then hugs her and a gives a speech where she vows to protect Ellis and not let her face painful events alone. Ellis smiles, tears up, and accepts Nadie's partnership with an enthusiastic "Yes, sir!".
Right before that, Ellis buying tacos for L.A and herself.
Ear Worm: Taco, taco, tacos, super tasty tacos too...
Fan Nickname: "Dougie" for Rosenberg, and "Squenchy" for the lizard in episode 3.
Hilarious in Hindsight: While it may be considered a tongue in check nod to a certain moment from its "sister series", Noir, Ellis wielding a pair of forks as weapons, in terms of some American anime fans, also brings to mind the sockpuppetEaster Egg parodies that ADV produced for their DVD release of Noir and Madlax.