Tinsley Mortimer Lashes Out At Boyfriend, Claims He Cheated In Epic Fight

There's trouble in paradise! RadarOnline.com can exclusively reveal that Tinsley Mortimer and her boyfriend, Scott Kluth, got into a major fight after she told pals she thought he could be cheating.

According to an insider, Mortimer "saw sexy photos of another girl on Scott's phone last month, and she completely lost it."

The 42-year-old Real Housewives of New York City star and the Chicago-based Coupon Cabin CEO, 41, "broke up for about a day," continued the source, "but then he made it up to her by whisking her away on a vacation to Maui."

Now, added the source, the pair are currently traveling in Dubai together.

As RadarOnline.com reported, the couple, who met through Mortimer's costar Carole Radziwill, blamed their split last year on the fact he lives in Chicago while she resides in New York City.

"It got to be a lot of pressure on the relationship," she said at the time. "We had to take some of that off and ease the tension, so we broke up, but I think it seems good now."

Despite her assurances, the two "are still on and off constantly," the insider told RadarOnline.com. "It's really insane."

We pay for juicy info! Do you have a story for RadarOnline.com? Email us at tips@radaronline.com, or call us at (866) ON-RADAR (667-2327) any time, day or night.