> I can’t believe that someone paying for this actually expects to chat with the model. Just think of the logistics, it would be impossible

It's not impossible, you can do it with a little bit of fine tuning starting from her history of chats on the platform, and having her set a custom user-level prompt where she lists her interests, hobbies and things she likes. Then give her auto-compacted daily or weekly summaries of the most compelling chats. It's a model either way, right?