The 26-year-old dental student from Maine considered a proposal from California winemaker Ben Flajnik before she agreed to wed Rosenbaum, 34, People.com reported.
"I'm so in love with you. You're the one. You're it," Rosenbaum said as he presented Hebert with a diamond Neil Lane engagement ring. "Ashley, will you marry me?"
"Yes!" Hebert replied before kissing her new fiance, People.com said.
Celebrity Breakups and divorces of 2014 [PHOTOS]