The relationship became formal after she married. They did correspond, he addressed her formally as 'Mrs. Wadia'.
Dina and Neville lived in Bombay and had two children, a boy and a girl. Shortly after that they separated.
Though isolated in many ways, Jinnah was always cared for by his sister Fatima who kept house for him and nursed him till his death. She was his sole companion, never faltering, always present for him in the time of need.