Demi Lovato falls out with Selena Gomez?

Los Angeles: Pop star Demi Lovato has reportedly fallen out with singer Selena Gomez again. She not just unfollowed the `Come and get it` hitmaker but posted a cryptic angry tweet against her.

Lovato, who previously admitted her long-time friendship with Gomez has been strained in the past, sent the rumour mills into overdrive when she stopped following the latter on Twitter Wednesday, suggest reports.

The 21-year-old singer wrote: "Swimming away from the bullsh*t bye b***h (sic)." but the post has since been deleted.

The duo, who have both sought treatment in rehab in the past, have been friends since they starred in “Barney & Friends” as children.

A source also told a gossip website:"Demi doesn`t need any extra drama, she`s learned from her own recovery to lose the people that bring her down and Selena is to much of a headache.”

"The unfollowing of Selena is sending a message that Demi is p***ed. She is sick of Selena`s boy-who-cried-wolf mentality,” the source added.