After dating Justin Bieber intermittently and sparking dating rumors again last year, Selena Gomez seems to have sworn off love, Hollywood Life reported. The 23-year-old singer is now rumored to be dating her best friend Taylor Swift’s brother Austin after being in an on-and-off relationship with Bieber.

“Selena has seen some writing on the wall that her having a relationship in the future is going to be very, very hard. She has joked so much to friends that she is going to be single forever that some friends are actually believing it,” a source told Hollywood Life.

The insider also said: “She is very apprehensive in trying something new or being set up because she believes it is doomed to fail from the start for a plethora of reasons. She covers those emotions up though by always working, she now wants to be continuously busy whether it is with her tour or doing films. It gives her an excuse to not stress on meeting a guy.”

Reports last year had suggested that Gomez was dating the One Direction singer Niall Horan, who has been a close friend to Bieber, 22. The rumors began after the two were seen getting cozy during a friend’s birthday party, but reports in January said Gomez and Horan, 22, broke up.

The rumors about a relationship between Gomez and Austin, 24, were reported by Hollywood Life earlier this month, saying that the two were “inseparable” at the Vanity Fair Oscar party. The two were also seen getting close during the Grammy Awards last month.

“There wasn’t one time that I didn’t see them [Gomez and Austin) together. Granted, Taylor was also with them, but at one point it was just the two of them dancing while Taylor was dancing with Lorde and Brie Larson. Selena and Austin weren’t holding hands or anything like that, but they do make a good looking couple, and they looked like they were having a great time together,” an eyewitness told Hollywood Life earlier in March.