updated 08/23/2012 AT 5:50 PM ET
•originally published 08/24/2012 AT 7:00 AM ET
One day after denying tabloid reports claiming Bachelorette star Emily Maynard had betrayed fiancé Jef Holm, the couple were hurt – but not surprised – to discover the allegations were made by Holm’s own brother, Mike Holm.
“My family all says they are shocked, and obviously I’m shocked,” Jef tells PEOPLE exclusively about Mike, who vacationed with the Holms family, Maynard and Maynard’s 7-year-old daughter Ricki in Myrtle Beach, S.C., last weekend. “But if everybody knew the history he had with our family, no one would be surprised.”
Once again, an emotional Holm and Maynard denied the reports, which claimed that Emily – who accepted Jef’s proposal on the season finale of The Bachelorette – had sent steamy texts to an unidentified man, leading to a huge argument with Jef during a family vacation. “This whole story is 100 percent false,” Holm reiterates.