Scott Westerfield's "Afterworlds" and Dyadic Withdrawal

Discuss the idea that Scott Westerfield's novel, "Afterworlds", condones dyadic withdrawal to an extreme extent. Dyadic withdrawal is a situation in which a person gets into a romantic relationship and then drifts away from many of his or her friends. In the novel, the main character spends a lot of time with her S.O. They write together, eat almost every meal together, and often sleep at each other's apartment. However, the main character seems reluctant to spend time with any of her friends or anyone other than her S.O. In the end, they break up and get back together, but they seem to think that there is no problem with the isolated nature of the relationship.