Selena Gomez recently went on an Instagram unfollowing spree and also noticeably deleted photos of her and Kylie Jenner. While no one knows for sure what happened between the girls, The Sun is reporting that it all has to do with Justin Bieber.

According to an inside source, Justin and Kylie had a brief romantic history together and Selena was not too happy when she found out.

"Selena is convinced something has gone on between Justin and Kylie," they said. “At Coachella they looked to be back on track. Selena was hanging out with Kylie too and they were behaving like best friends. Then she heard stuff about Justin and Kylie and felt totally betrayed. She went berserk and called it all off again."

We're definitely hesitant to believe the rumors since Kylie has reportedly been dating Jaden Smith for quite some time. We can't image Justin going after his best friend's girl!

According to the insider, however, Selena has been extremely jealous lately.

“Selena is in a really bad place at the moment – she’s on the edge and now overcome with jealousy," they said. “She really needs to wash her hands of Justin for good.”

Even if Selena was feeling jealous of Kylie, that doesn't explain why she also unfollowed some of her other friends like Taylor Swift and Ashley Benson.

Do you think Justin and Kylie ever got together? Are you worried about Selena? Sound off in the comments below.

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