AceShowbiz - Demi Lovato recently caused social media frenzy when people noticed that she unfollowed her good pal Selena Gomez on Instagram. This move has prompted many fans to speculate as to why the "Sorry Not Sorry" singer decided to do it.

One fan thought that Demi might be unfollowing her fellow Disney alum because the latter did the same to her. Selena previously made headlines after she unfollowed more than her 270 friends on the photo-sharing platform, only following a few of her business partners such as Coach and Puma. However, some others didn't think it was the reason judging by Demi's recent comment on the site.

For those who need a refresher, the "Cool for the Summer" singer recently said that "true friends don't do interviews about you when you OD" in response to an internet user who defended her backup dancer, Dani Vitale, who once was blamed for her drug overdose. While it's natural for people to think that Demi was referring to the dancer in her comment, she later clarified that she was, in fact, "not talking about Dani Vitale."

With that theory debunked, fans started to believe that the remark was directed to Selena, After all, the "Spring Breakers" star did open up to Elle magazine about Demi's overdose back in September when she was still in rehab. Selena said at the time, "All I'm saying is, I reached out personally. I didn't do a public thing. I didn't want to. I...I love her. I've known her since I was 7. So...it's...that's what I'll said."

So did Demi really unfollow Selena because of that reason? The "Camp Rock" has yet to respond to the speculation.

Demi recently completed her 90-day rehab stint after being hospitalized for drug overdose. On the other hand, Selena, who was hospitalized after suffering an alleged emotional breakdown, has also reportedly left her rehab facility in New York City.