Demi Lovato unfollows Selena Gomez on Twitter

Actress Demi Lovato has sparked rumours of a fallout with singer Selena Gomez by unfollowing her on Twitter.
The 21-year-old star, who has been friends with Gomez, 21, since they starred in 'Barney & Friends' as children, wants to distance herself from her, reported Daily Mirror.
"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 upset. She is sick of Selena's boy-who-cried-wolf mentality," a source said.
The 'Skyscraper' star and Gomez, who is also said to have distanced herself from a number of her other celebrity friends, including Taylor Swift, Kendall Jenner and Kylie Jenner, have had a complicated relationship in recent years.

"We've been through a lot together, we've had periods of times we here we grew apart and we just didn't really talk," Lovato had said last year.