Whitney Port: I Don't Know Who to Trust

The City star Whitney Port has confessed to the worst moment of her career on reality TV. And yes, it involves discovering her boyfriend, Aussie rocker Jay Lyons, was cheating on her.

"The most embarrassing moment of my TV career to date came when I found out from a friend that my boyfriend was cheating on me," she tells the Mail on Sunday's You magazine.

"Whoever you are and however it happens, that is a humbling, horrible moment, but when the cameras are on you, waiting for your reaction, you just feel pathetic and totally naive."

Whitney can only guess if the split was engineered by the makers of the show. "You wonder, did the producers know he was cheating? It gets very difficult to know who to trust."

So, how did this sensitive, quiet girl — the anti-Speidi — get her own program?

"I never expected this," the 24-year-old says. "I am the most drama-free, non attention-seeking person out there.

"When the MTV producers asked me to do The City I said, 'Why me?' I am so not the reality TV show type."

With the Sex and the City sequel currently being filmed, is Whitney our new Carrie Bradshaw?

"Oh, I love Sex and the City, but I'm more of a Charlotte! I love being single but, however much MTV would love it, I am not going to go on a different date every night."