Was Dimple Kapadia Married to Sunny Deol?

Rajesh Khanna and Dimple Kapadia relationships are very complex and difficult to understand. They got separated after 10 years of marriage. After leaving Kaka's home, Dimple got busy again in films. After joining Films, she immediately started having an extramarital affair with Sunny Deol and their relationship continued till date. Kaka didn't divorced Dimple even he was well aware of Dimple affair with Sunny Paaji. But, Tina Munim who was having living relationship with Kaka has left him as he was not taking Divorce from Dimple. What was the real reason and why Kaka was not taking divorce from Dimple even when Dimple has sent Divorce papers to Kaka many a times