Nobody can stay in the garden of Eden," Jacques said. And then: "I wonder why.''
Getting at the idea that nobody is perfect in a way I believe. Or that even if someones life is perfect, and everyone views their life to be perfect and fulfilled, they're always going to want more. Also connects to later in the book when David is at "home" with Giovanni and that room is his Eden for while, but then his Eden becomes more of a cage where he has no freedom. Changing tones a little to David feeling trapped - this is how I view a lot of people in relationships. Weather or not he's gay/bisexual, I feel like a lot of people who aren't questioning their sexual identity can feel trapped. So maybe he is just bisexual and doesn't want the relationship because it's not working. But he ends up viewing it as his hell in the end. The opposite of Eden. As well as his trap in the "gay world."