Why do Amir and Soraya move an hour away from Soraya's parents? Elaborate on whether the move works or not.

Amir received an advance for his second novel, and the couple used the money for a down payment on a home in Bernal Heights (San Francisco). Soraya's mother was upset by the move, but her "overbearing sympathy was precisely what was driving Soraya to move." Ultimately, the happiness of having their own home was dampened by Soraya's inability to conceive.