The 21-year-old, who has been in a troubled relationship with Bieber for three years, not only dupmed him but also ended her friendship with Jenner after she found that she'd been texting him and sharing photos.
"Selena flipped out and there was a huge fight between the girls. She now wants nothing to do with Kylie or her sister Kendall," radaronline.com. quoted a source as saying.
However, it's not just the Jenner sisters that have had the cold shoulder from Gomez, who was seen cuddling Bieber, at the Coachella Valley Music and Arts Festival earlier this month.
"Selena was also furious at Justin. They're not together right now," added the source.