"There comes a point where it's not about beating him [the other contestants], but, wow, I want to be with her," Rosenbaum said on "GMA." "At some point that all changes and you just fall for the girl.
"Looking back, it was definitely Hong Kong for me," he said.
As the season seven finale approached, it became clear to audiences that Hebert was falling fast for Rosenbaum. Although she was convinced that her family would love her new suitor, her sister wasn't sold.
"I think you're too much for him," she tells Hebert, making her little sister cry. "I think you're too young and too spunky and he's just a little bit older and a little bit more demure."
"I knew that was going to happen," Hebert said today on "GMA" of her sister's brutally honest reaction.
But after Hebert Hebert followed her heart and accepted Rosenbaum's proposal, it seems even the couple's harshest critic could feel the love.
"From the second we got home, she's been nothing but sweet and supportive, a different person," Rosenbaum said of his future sister-in-law.
"I think it brought them closer," Hebert added.
And while Hebert's family and fans alike are thrilled by the couple's happiness, there are still skeptics who doubt, given the show's spotty record, that made-for-television romance can last.
"We're going to prove them wrong," Hebert said on "GMA" of the couple's future together.
"Definitely," her fiance added. "This is something special."