1. During her acting era she dated Amitabh Bachchan but after he broke up with her. Because he was already married. She said a lot of things against her. And even called him a “international gangster”.
2. She then dated Danny and eventually they broke up too due to his friendship with Amitabh. Danny noticed her weirdo behaviour.
Danny said that she called him “Amitabh's agent” and she would be afraid that someone wanted to harm her.
3. Then she was in relationship with Kabir Bedi who left his wife to start a new life with her but again he noticed a weird behaviour she was diagnosed with Paranoid Schizophrenia. That's a incurable mental illness. He wanted to help but she denied.
4. The last and shocking relationship Mahesh Bhatt. He was already married but he too left his wife for her. They started living in a living in relationship. And then he noticed a pattern
a) Parveen would threaten people with knife
b) She was scared that somebody is going to kill her.
And this relationship again ended. And after that she never dated anyone and died alone.