At this point in the book, how does Daisy really feel about Gatsby

Um, which point are you referring to?

In Chapter 4

Sure, In Chapter 4 almost everybody seems to have a hypothesis on Gatsby's past. It becomes something of a party game. Daisy, like many of these filthy rich people, is on the superficial side. Well really, she has the depth of a shallow puddle. Daisy finds Gatsby's mystery intriguing. She tires of Tom who is rich but oh so predictable. So, at this point in the novel Daisy is "interested" which is exactly what Gatsby was after.