LuAnn De Lesseps opened up about her marriage to Tom D'Agostino during the Real Housewives of New York City season nine reunion special.

According to a new report, De Lesseps admits that D'Agostino, who compared wearing a wedding ring to being a dog with a collar, "is a little bit off” with his humor before being questioned by host Andy Cohen about the ongoing rumors regarding D'Agostino's possible cheating.

“Does it alarm you that Bethenny [Frankel] is saying that they [her costars] have all heard things since you’ve been married? Does that raise your antenna?” Cohen asked, according to a report by Radar Online on August 16.

“Of course it does,” she responded.

“Do you have an open relationship?” he continued.

“No,” she said. “Not at all. I’m not interested in an open relationship, otherwise I wouldn’t be married.”

“If you found out that he had cheated on you, what would you do?” Cohen asked.

“I would definitely leave,” she stated.

De Lesseps and D’Agostino confirmed their plans for divorce earlier this month after getting married just months ago on New Year’s Eve.

De Lesseps announced the news on Twitter with a message that read, "It's with great sadness that Tom & I agreed to divorce. We care for each other very much, hope you respect our privacy during this sad time!"

She later added, "Thank you for the generous expression of warmth, kindness and understanding. Your support and encouragement helps me to get through."

To see more of LuAnn De Lesseps and her co-stars, including Ramona Singer, Sonja Morgan, Bethenny Frankel, Dorinda Medley, and Tinsley Mortimer, tune into the Real Housewives of New York City reunion next Wednesday at 9 p.m. on Bravo TV and check out the sneak peek below.

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LuAnn De Lesseps, The Real Housewives of New York City, Bravo, Reality TV, Andy cohen, Tom d'agostino