He considers lying to her and saying he feels fine - after all, it's what he does when they're back in England, pretend things are better than they are. But having seen the impact that talking about his hospital visit had on her, he decides she'll probably see through any lies.

"Terrified. But ready. I'm pretty sure I'm ready." There's one of those small Folger coffeemakers in their room, and he starts it up. "I'm like...zen. Zen in terror."