LiCausi's alleged engagement has been called off, Wetpaint reported Tuesday.
"It's not a recent split," a source said. "It happened a few months ago."
LiCausi appeared to take to Twitter on Wednesday and address the report.
"I can't stop the rumors from starting, and I can't really change peoples minds who believe them, all I can do is sit back and laugh at these low life people who have nothing better to do than talk about me," she tweeted via an Instagram photo.
While filming of The Bachelor's seventeenth season concluded in November 2012, LiCausi claimed she had dated her fiance for awhile prior to appearing on the show. She insisted they rekindled their romance once she returned home and got over her heartbreak from Lowe dumping her.
Both viewers and her fellow The Bachelorcast members had expressed skepticism about LiCausi's engagement given its abrupt nature and the fact she never identified her fiance or released a photo showing them together.