What does the woman worry about?

M: Hey, Jean. How’s it going?
W: Oh, the same old thing, I guess, (5)I have to go to Washington next week to meet my publishers and (4)I don’t know how I’ll manage with exams coming up. I’m looking forward to the long break this summer.
M: Yeah, me too. How is the book coming?
W: Pretty well, I think. (5)I just have to meet with the publishers to talk about the format for the last chapter of one of my books. It’s almost done.
M: What’s the last chapter mainly about?
W: Well, the book is about the history of Britain, and the last chapter just focuses on a great poet.
M: If you weren’t so busy with going to Washington at all, (6) I’d love to have you come and discuss the great poet Poe with my English history class. We’ve been studying poetry and prose of the 19th century.
W: I’d love to, Jim, but I don’t know what my schedule is going to be like when I get back next Tuesday. When does your class meet?
M: On Monday and Thursday at 3: 00 p. m.
W: I might be able to do it. Let’s talk when I get back next Tuesday and I’ll let you know.
M: Thanks a lot. It would be great if you could come.