Call me, maybe? Bethenny Frankel confronts Dorinda Medley over her boyfriend, John Mahdessian, in The Real Housewives of New York City's Wednesday, April 13, episode, as seen in Us Weekly's exclusive sneak peek.

In the Bravo series' preview clip, the Skinnygirl boss, 45, tells her costar, 51, that she doesn't appreciate things John has said to Frankel when Medley is out of earshot.

"This summer, in my house in the Hamptons, John comes in and starts pitching me business ideas when you're not there," Frankel says. "When you walk out to the front door, John asks me for my phone number. I'm like, 'Ask your girlfriend for my phone number.'"

"You keep selling John to us, and we're not buying," the entrepreneur continues.

Watch the tense scene in the video above to see Medley's response to the accusations.

The Real Housewives of New York City airs on Bravo Wednesdays at 9 p.m. ET.

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