“There can only be one peacock in the family,” says Jill. “It’s all about me!”

There can only be one belle of the ball — and in a relationship, there can only be one peacock! What’s a “peacock,” you ask? “It is a rule of nature” that only one person can be the attention grabber in a couple explains, The Real Housewife of New York City star Jill Zarin. “It’s like the A and B personality. Two A’s together is more difficult and more challenging, an A and B together is clearly better!” she tells HollywoodLife.com exclusively. And when it comes the other Housewives, Jill knows exactly which person in the peacock in each relationship.

Here are the peacocks of The Real Housewives of New York City according to Jill:

1. Jill and Bobby Zarin: “Clearly [I'm] the peacock in my relationship,” Jill says. “When Bobby and I go out, sure he wants to look in the mirror and see how he looks and asks me how he looks. But, really, it’s all about me. He’ll always say how he wants to make sure that I’m front and center!”
2. Alex McCord and Simon van Kempen: “Simon has always been the peacock,” Jill says. “But, I think Alex is spreading her wings, so it will be interesting. Now that Alex sort of asserted herself, I believe Simon has sort of taken a back role. If he’s more comfortable there, then everything will work fine.”
3. Bethenny Frankel and Jason Hoppy: “Bethenny is the peacock,” Jill says.
4. Ramona and Mario Singer: “Ramona is definitely the peacock,” Jill says. “But Mario does try to stick a wing in there once in a while and make it known that he’s around and sort of spreading his wings around her.”
5. Kelly Bensimon: “I think that the dating issue for Kelly is that she is a peacock [and] she’s looking for a peacock,” says Jill. “Gilles Bensimon was a peacock for sure. I’ve never met the man, but I can only imagine based on his reputation. That could have been part of the issues [of their divorce] because Kelly wanted to be more out front and he WAS out front already.
6. Sonja Morgan: “Sonja is a peacock, but she really would like a strong man,” explains Jill. “She would love a guy who is the peacock and she could like step back and let him be in front. She would just take all the glorious things that would come with the relationship.”

For more on the “peacock theory,” check out Jill’s new book, Secrets of a Jewish Mother, and watch Hollywood Life‘s EXCLUSIVE video interview with her below:

— Lindsey DiMattina