Gael and Angela fell asleep after going over some scenes in the book with him. She recounted what went on in her head as she wrote them. And he was right about her projecting her reality to the book—or at least, what could've been.
He told her that he would be lying if he said he wasn't feeling anything bad about their situation after she worried that he was taking it better than she thought he would. She probably expected him to throw a fit for finding out about her pregnancy and miscarriage like this.