Ahh!! Yes, you’re right about the app, it definitely plays a role! But the story actually begins right when both Milo and Rylee hit their breaking point, so you’re seeing them at their unstable form from the moment you pick their routes. It’s especially noticeable with Milo since he’s known MC for so long, so MC ghosting him and all that just makes things spiral even more. There will be much more answers in the full game too.
Hope that clears things up a bit 💕