Selena Gomez and Taylor Swift were best friends until a few days ago. According to the new report, there is a bad blood between Selena and Taylor and it's all because of Justin Bieber. Rumor has it that the "Shake It Off" singer is upset with her best friend after she reuniting with her ex-boyfriend Justin again throughout her time in rehab.

Reports claimed that Swift wasn't supportive of the relationship of Selana Gomez with Justin Bieber from its very brining. So, when she reportedly heard that best friend contacted Justin again, Selena Gomez and Taylor Swift reportedly started a feud. Taylor repeatedly reminded Selena that that Justin is the cause of her rehabilitation and that she hates him because of that.   

Taylor Swift and Selena Gomez have been inseparable for years, but according to rumors that started to circle earlier this week, the "Hands to Myself" singer is finally done playing it nice with the blonde popstar.

Although there is no proof that Taylor and Selena are fighting, several reports suggested that Gomez wanted to expose her allegedly ex-best friend with a tell-all book. According to those speculations, Gomez will apparently share with the fans some nasty stories about how Swift treats the people around her. Also, she reportedly became very upset with Swift and that is the reason why she allegedly wrote a letter to Swift that is saying that their longtime friendship is already over.

Fortunately, Gossip Cop immediately discredited the story and claimed that Swift and Gomez are not fighting at all. Selena Gomez isn't going to write a tell-all story about her best friend because of Bieber. So, this could also tell a different story than many tabloids which claim that Gomez is reconnecting with Justin Bieber.

According to the same report, Selena Gomez is supported by Taylor Swift during her battle against Lupus and its side effects. Ever since Selena went to her rehabilitation, the "Blank Space" singer had been spotted a many time in Tennessee and fans are also hoping to see the two hang out again.

Reps for Selena Gomez and Taylor Swift haven't commented on the reports for now.

What do you think? Is Justin Bieber causing bad blood between Selena Gomez and Taylor Swift?