Lesbian couple Whitney Mixter and Sada Bettencourt return to reality television next month in VH1's Couples Therapy.

The women's sometimes rocky relationship was on full view for three seasons on Showtime's The Real L Word.

The show ended on a high note for the couple. In Perfect Day, broadcast last year, Whitney and Sada married.

In a recent interview with GO Magazine, Sada said that the show put a “huge strain” on their relationship.

“I think it put a huge strain on our relationship because I didn’t want to be vulnerable on camera, and we couldn’t get to the point where we needed to be to move forward in our relationship. I had an enormous wall up. People were trying to keep us apart. It felt like us against the world. So, I think it took us longer to get where we would have eventually. Whitney is my soulmate, and I know that we would have ended up together, no matter what. Because of everything that we’ve been through, I think we can go through anything and make it,” Sada said.

In a promo for the new season of Couples Therapy, Dr. Jenn Berman is seen telling the women: “It would be such a fucking shame for you guys to lose this relationship, because if you keep going the way you are going, this won't last.” (A trailer for season 4 of Couples Therapy is embedded on this page. Visit our video library for more videos.)

Couples Therapy premieres January 2 on VH1.