A new report suggests that The Bachelor 2013 star Sean Lowe and Catherine Guidici could be the latest couple hit with the "reality curse"- the bad luck that has been rumored for years to cause couples that met on reality TV shows, to breakup.

A source told Star magazine that when Lowe was busy rehearsing for Dancing With The Stars, his fiancé kept herself occupied with one of the show's professional dancers, Julz Toker.

According to an eyewitness, when the couple attended a party at the Palazzo apartment complex in Los Angeles in early May, the Bachelor 2013 winner was seen rubbing "Julz's arm, whispering in his ear and giggling."

The complete story of the eyewitness account will be revealed in Star magazine's issue due May 16.

Lowe recently addressed rumors that he was allegedly cheating on Giduici with a professional dancer from Dancing with the Stars. He was rumored to be having an affair with dance partner Peta Murgatroyd. He debunked the claims in an interview with Celebuzz.

"There's always speculation and I knew going in to Dancing with the Stars, whether it's Peta or another professional dancer, they're all attractive women. I knew those rumors were going to circulate," he said. "There's nothing going on there. Catherine and I couldn't be better. It's just silly."

"I don't go out and browse the (gossip) magazines," he added. "But I see stuff and people post it on Twitter and they're always asking me 'is this true?'" The fact of the matter is if you read (it) in the tabloids, it's not true. Catherine and I are doing great."

The couple are currently taking a break since Lowe was eliminated from Stars on May 7 during week 8. The former Texas insurance agent shared that they plan to "definitely take a vacation, relax, spend a lot of good quality time because Dancing has consumed my life these past few months," Lowe said in another interview.

"We're going to do a couple of weekend getaways and then we talked about doing one big vacation," he explained. "We're definitely going to take advantage of the summer!"