updated 08/22/2012 AT 3:00 PM ET
•originally published 08/22/2012 AT 4:30 PM ET
It’s been one month since Charlotte, N.C., mom Emily Maynard accepted Utah-based entrepreneur Jef Holm’s marriage proposal on the season finale of The Bachelorette. Now they’re back in the news thanks to tabloid reports claiming Maynard betrayed her fiancé.
“It’s one hundred percent not true,” Maynard tells PEOPLE exclusively of the cheating accusations.
According to reports, the couple had a blowout fight while vacationing with Holm’s family and Maynard’s 7-year-old daughter Ricki in Myrtle Beach, S.C., last weekend.
“It’s funny to me,” Holm tells PEOPLE. “We were in a gated community in a private home with just my brothers and sisters. It’s just bogus a ‘source’ would [say] we were fighting. None of that is true.”