This is inventive and clever world building, even in this late chapter, and I was left wanting to know more about the setting in which your story takes place. There are lots of references - some of which may already have been explained and expanded upon - which are strange but have enough points of familiarity with 'real-world' things that it's easy to get a sense of what they mean.
There's obviously a lot of character conflict here, both external and internal, and the relationships between the characters are clear. So there's the embryo of a strong scene.
However, I'd very much agree with Rick's comments above.
The characters don't really have distinctive voices or vocal mannerisms, so it is quite easy to lose track of which side of the argument you're following. Since these are characters that we've presumably met before in the preceding 17 chapters, this may be a 'first draft' thing, and distinguishing traits will be added later. But it might be worth re-visiting earlier chapters too, to see if those show the same thing.
There's definitely some repetition of the argument, as Rick points out. In fact it felt to me that Erica and Malakai had their argument about her having to deal with the reports of his death and his disappearance and then his reappearance with Ghost/Kate in tow. Then Malakai goes to the bathroom. And then, when he reappears, they have almost exactly the same argument all over again. Erica even 'pinches the bridge of her nose' again! I think the break needs to mark more of a change in their interaction - a different tone or an accomodation or a development... before the revelation as to why Malakai is here and the bombshell that Latria isn't there.
I wonder whether it might be worth jotting down a quick 'schematic' of their argument in this scene and the various stages it goes through (if you haven't already done so). Almost as if you were building a scene structure, but focused on just the key points that you need to hit at each point in their dialogue. At the moment, it feels (like all first drafts) as if it's been written 'in the heat of the moment', the beats are a a bit random, and it felt to me that it lacked a clear journey from initiation to resolution. The structure might help avoid the slight repetition as well as giving that clear throughline.
Like Rick, I didn't really understand the multiple references to gravity and Malakai 'falling' as it 'tugs' at him. Maybe this is explained earlier, but it felt really odd every time it popped up. And it only seems to apply to him... there's no other reference to gravity acting on Erica or Ghost or anything in the room. Even the water from the faucet seems normal. Is there actually different gravity where they are? Or is it a metaphor for his exhaustion and weakness? It's not really clear. If it's the latter, I think it needs to be clarified. If the former it needs to be something that has a wider effect.
It's a fantastic start, though, and the writing is really good. I'd want to read more!