If anything, on the relationship path you learn more about exactly how vulnerable and alone Maya is. If you enter the 3 person relationship, there's a scene where Josy needs to meet with her dad who has brought her stuff from home. This scene can happen if you are friends with them (Josy will ask the MC to come). If they are in a relationship, MC agrees w/o you getting a prompt.I kinda disagree with that. I have to mention that i have only seen friend path so i don't know if she becomes more assertive on the other. Right now she doesn't strike me as a person who would say no, mainly because of her blind belief and desperation for that tuition, at least not without getting Josy or MC involved. That being said it probably won't happen because there's a certain 3 letter acronym missing in the tags.
In the relationship, after Josy's dad leaves, the player is given an option. They can accompany Josy bringing her things back to the dorm room. This leads to a nice conversation and what is probably the best sex scene in the game between MC and Josy. Alternatively, MC can tell Josy that he's gonna go back into the party and find Maya (who did not come along becasue she didn't want to upset Josy's dad). If you choose that path, there's a scene with MC and Maya where she confides to him how sad she was because seeing Josy's dad be supportive and forgive her reminds her that her parents don't treat her that way, and that Josy, MC and Derek are all she has. MC and Maya then successfully have sex, only to have Josy walk in on them afterwards. That decision is tracked in the character bios and in the end-of-chapter summaries for Maya and Josy, so it's being tracked going forward.