Why did Laila decide to return to Kabul ?

Laila realizes that she misses Kabul. She hears about life returning to normal, and feels that her life in Pakistan is inconsequential. She is reminded of Hakim's words that Afghanistan will need her and her mother's words about seeing peace in Afghanistan to honor Ahmad and Noor. Laila tells Tariq that she wants to return to Kabul, and Tariq agrees.