The context of the following conversation is Kai had a big exam coming up soon. Kai spent some time reading a book.:
Kai says Sorry I can't come camping with you guys this weekend..
The friend responds Oh man, why not, it's going to be great..
Kai responds I have a big exam coming up for the summer program I am in and I need to finish this book for it..
The friend responds Just bring the book with you, you can read by the lake or in a hammock..
Kai responds I can't, it's really dense and I've already spent some time reading it and only got two chapters in..
The friend responds Alright, I understand but it wont be as much fun with out you..