In an exclusive sneak peek at Monday's Good Morning America Bachelor reunion special, which will air ahead of this season's Bachelorette finale, Fedotowsky gets real with Bachelor host Chris Harrison and GMA co-anchor Lara Spencer.
"I don't believe you actually completely fall in love on the show, that's just my theory," said the former Bachelorette leading lady, 30. "I think you fall in lust. … I think that once you choose your final one, then your heart really can fall in love."
Fedotowksy vied for the heart of Bachelor Jake Pavelka before becoming the Bachelorette in season 6.
She got engaged to Roberto Martinez on the season finale, but the two split in 2011 after 18 months together.
Also at the GMA Bachelor reunion special were The Bachelorette season 10 leading lady Andi Dorfman, Desiree and Chris Siegfried (who wed in January), Chris Soules, Lacy Faddoul, Clare Crawley, and Catherine and Sean Lowe.
Fedotowksy also acknowledged that on The Bachelor, romantic feelings "can definitely be with two people" – something current Bachelorette Kaitlyn Bristowe can relate to. On Monday night's finale, she will choose between her two final suitors, Nick Viall and Shawn Booth.
RELATED VIDEO: Kaitlyn Bristowe Says She Was Sex-Shamed 'Because I'm a Woman'
Tune in to The Bachelorette finale Monday at 8 p.m. ET on ABC to see whom Bristowe gives her final rose to.