
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, reports contactmusic.com.
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 gossip website HollywoodLife.com:"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 too 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,” the source added.
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