The model took to her Instagram Stories to address talk that she and the 25-year-old "Sorry" hitmaker were going through a rough patch, and insisted that fans should focus on their own lives instead of hers.
"I'm not gonna sit here and let obsessive strangers try to tell me about my own husband, you wanna talk about somebodies husband then get ur own (sic)," she fumed.
The star went on to slam fans' "delusional" behaviour, and remained adamant that she felt no pressure to explain her relationship in light of comments made online.
"You little internet kiddos need to learn how to move on for real," the 22-year-old beauty began the post. "We're adults that have better things to do than waste time explaining something just so you can stop your delusional fantasies."
In a separate post, Hailey used the platform to remind her followers that nobody is perfect.
"Just a reminder: none of us have this thing called life figured out," she stated.
The star's comments come shortly after a source close to the couple claimed to U.S. OK! Magazine that the pair had split over arguments surrounding her rumoured pregnancy.
"The word is that they recently got into a terrible fight - and Justin walked out and ended things for good," the insider told the publication. "The whole thing is a mess and is really putting a damper on parenthood."