Darcy wants to become a writer. But she needs to be reading, writing, and studying in class all the time if she wants to accomplish that goal. If Darcy has to keep working to pay her bills and rent, she won't be able to accomplish that. It's the reason she has a sugar daddy. Being a successful novelist, he can afford to pay Darcy to serve as his inspiration. When he has time, she complies with his requests. He explained that although he couldn't get her published in exchange, he could still offer her a significant payment. Darcy doesn't want to sell out and fuck her way to the top, so that's okay with her. She puts a lot of effort into doing things the proper way.