Former "Barney & Friends child stars are in the midst of an ongoing feud after Demi Lovato allegedly unfollowed Selena Gomez on Instagram and Twitter.

The 21-year-old "X-Factor" judge initially tweeted, "Swimming away from the bulls*** bye b****." However, the controversial tweet has been deleted immediately after posting, according to the Daily Mail.

A source dished to Hollywood Life, "Demi doesn't need 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."

During an interview last year, Lovato dished on her relationship with Gomez, that back then was still going strong. "We've been through a lot together, we've had periods of times we here we grew apart we just didn't really talk. Now we are in a place where I think we realized that life is so short and that when you have people in your life that love you so much then, you should just always be around them."

The "Heart Attack" singer continued, "Everything about her, she has a great soul, she's talented, she's beautiful and she will always be really, really close to my heart."

As of late, Gomez has not unfollwed Lovato on Instagram and has not commented regarding the issue.

Meanwhile, Gomez's family and friends are becoming more concerned than ever especially when it comes to the "Come & Get It" singer's health and state of mind.

Multiple sources revealed that Gomez's entire family wants her to go back to rehab. The singer's father recently spoke about her granddaughter's Lupus and said that Justin Bieber's involvement in her life is not doing her any good, Guardian Liberty Voice confirmed.

Earlier this year, Gomez explained in an interview with Hollywood Life, "Until recenty, I have given into the pressure, I lost sight of who I was. I listened to opinions of people and I tried to change who I am because I thought others would accept me for it. And I realized I don't know how to be anything but myself."