Who is Jamila, Jammie from The Buddha of Suburbia and what is their importance?

Jamila is Karim's childhood friend and sometime lover. Her father, Anwar, is Haroon's oldest friend. She has grown up with a lot of freedom which makes her father's shift to a strict Muslim way of life particularly devastating. She is forced into a marriage by her father, but has a strong enough personality to endure it and continue to make her own life. This is aided by the fact that her new husband, Changez, is easily dominated.