"Everyone who knows me knows it wasn't true and it's kind of silly," she told RadarOnline about the alleged relationship.
Papa added her conversation with Harrison during the upcoming special "wasn't scripted," which made Harrison even more uncomfortable because he "does well with scripted."
"He said something like, 'We're all just really wounded by this because a member of our family, one of our dear friends was fired,'" she told RadarOnline.
"I said, 'It's funny you should say that because I talk to this producer and the fact that you guys are friends is news to him. He didn't get a really friendly vibe when you were hitting on his (now former) wife last year in New Zealand!'"
Papa said Harrison "did not stomach" that particular accusation "very well."
"He tried to play it off at first but you could tell he was pissed," she told RadarOnline, adding the confrontation ended quickly after her accusation.
"As soon as Chris Harrison started getting angry they whisked me off the stage."
Papa added her participation in The Women Tell All special "wasn't really fun" and isn't even sure if it will make it into the episode.
"They're crafty, those people over at The Bachelor," she told RadarOnline.com. "I hope they air it."