04/30/2014 11:15 pm ET Updated May 02, 2014

Tracy McMillan On Why You Don't Have The Relationship You Want

Tracy McMillan has been divorced three times. And that makes her somewhat of a marriage expert.

These relationships inspired her to write a blog for The Huffington Post in 2011 on "Why You're Not Married Yet" -- and the message resonated so widely that she turned it into a book. Now McMillan is taking the conversation to Oprah's "Super Soul Sunday."

In a preview for her episode, set to air May 4, McMillan tells Oprah that being a "liar" prevents many women from finding the romantic relationships they desire.

"If you wanna be in a long-term committed relationship, you have to say that," McMillan says. "You can't just hide it behind your back."

During McMillan's forthcoming episode, she and Oprah will also discuss casual sex and the more spiritual component of romantic partnerships.

To see more on Tracy McMillan's episode of "Super Soul Sunday," head over to OWN.