Seems like Taylor Swift.
However, it looks like the star has put that behind her and has rekindled her friendship with both Kendall and Taylor. Even though they were not spotted together, Selena and Kendall attended the same dinner party this week, suggesting that all's well between the two.
As for Selena and Kylie Jenner, a source told E! News that the singer is not angry with the reality star anymore. "All's good now. Selena did get a bit jealous when Kylie and Justin got "flirty" with each other, but she and Kylie are fine."
Well, seems like Selena, Kylie, Kendall and Taylor can all relax now and get back to being BFFs.