The two celebs reportedly called it quits before New Year's Eve and ever since then rumors have been going around about what really happened that night.
Many sources close to the couple are saying Victoria's Secret model Barbara Palvin was the reason Jelena started to fight in Mexico that night.
Now there's speculation that when Selena left the resort she was at with JB, she told everyone around her that Justin was being big jerk to her during their fight.
According the Hollywoodlife.com, Selena told friends at a party that Justin told her to "not let the door hit you on the way out."
If he was mean to her then, he's definitely regretting it now. There are reports he's been calling her up to 100 times a day trying to get her back! This all comes after JB was caught smoking pot and drinking alcohol too. Maybe he's just having a tough time in life right now?
Being a jerk just doesn't seem like Justin, but then again, stress will make anyone mean. And not to mention, who can be rude to Selena? She's like the sweetest celeb ever.
Do you believe the reports that Justin was overly mean to Selena during their breakup?
Gallery | The Biebs: When He's Good, He's Very Good, But When He's Bad...