Asked about it at the book launch event, she said: "I don't want to get into it... my private life is nobody's business."
Coming to her rescue, the book's author Nasreen Munni Kabir said: "We have to respect actors' personal lives and we should not cross the line. She has been loved by all of us (for her work) and that's not (her relationship) what she is known for."
Further asked why directors fall in love with their actors, Waheeda said: "There have to be a little bit... because the director thinks from the actors' point of view. I think all the directors were in love with me."
Waheeda said nobody knows why he commited suicide.
"Nobody knows (why he committed suicide)...I dont think he was in depression after the failure of 'Kagaz Ke Phool' because soon after that he made 'Chaudhavin Ka Chand' which was a super hit."
Guru Dutt was found dead in his apartment Oct 10, 1964.