Some really nice observations. For the first point, Ocean does have two channels on his discord for bug reports and grammar reports. As he'll be patching in some of the lewds that were cut, anyone who feels OCD about grammar AND has energy can help us all by going there. Regards your spoilery points I hadn't seen the conspiracy that way, but yeah, it makes sense. I also wonder if Marla needs the shared therapy session with Nika for a different reason than because he was at Vic's accident - surely she'd need a therapy session with Vic instead? AMber and Marla are friends shince before Bella's sister's accident, as Stephanie has known Bella from childhood, so I did think she was doing something in particular, but the potential interactions with Amber ar a great pickup. Noji is also pushing Nika on multiple occassions with semi birds and bees type talk, as well as being a friend of Amber's and trying to hide it. Noji also knows Scarlet and Katie, Katie is part of ZPR, who employ Marla. Interactions at Elena's club whenever that happens will be quite revealling.
I think the big drop was Nika's admission "it wasn't my fault... I had no other choice" when talking in that first session about what happened to Summer, when Amber asks if he blames himself. This heavily implies he performed some action, took some action that had an effect on Summer and why she's gone.
The house rules thing helps, and the conversations help make that whole scenario make sense for people who don't use patches. The scene at the lake and the way Nami hates how Noji is putting the rules in place and making it weird really feels a lot more authentic, but at the same time, the parentage questions feel more obtuse.
On other things that you've played passed, I also noticed that Bella mentions Ayua's looking to move into student housing, and I'm more and more convinced goth bus/pizza girl is Melanie. She's repeated and focused in in in both cases, despite being in the background and not interacting, but she's watching.