"I feel he always talked about how he was romantic more than he actually was," Hebert wrote on her People blog about Brown, who she eliminated following hometown dates with each of her final four suitors.
"I really like Ames, but I have always waited for the romance to really happen. This hometown date was really my last attempt to see if it could be there."
While Hebert felt her chemistry with Brown had been lacking, her undisclosed feelings had become apparent to Brown's sister Serena during the couple's hometown date.
"Serena asked me questions regarding my spark for Ames, and this was actually something I felt I was missing at this point," Hebert said.
"Serena had great insight because even she wasn't sure if I felt it. I was hoping to see it all come to fruition on this date, and while I did see and feel more, it wasn't enough to let one of the other guys go."
However, Hebert expressed how she thought Brown, a 31-year-old portfolio manager from New York, NY was amazing and his family had exceeded her expectations.
"Ames is probably one of the most intelligent, optimistic and insightful people I've ever met. I was very excited and curious to meet his family and see how Ames became the man he is now. And they were incredible!" she said.
The former fifteenth-season The Bachelor bachelorette also insisted letting Brown go wasn't an easy decision because he was such a great person.
"In the end, I really felt as if I was missing a romantic connection with Ames. I knew saying goodbye to him would be hard because the last thing I wanted to do was hurt someone I respected so much. Ames is the true definition of a good man and I know he will make a wonderful woman very happy one day! You're the best Ames!" Hebert added.