• Singers Selena Gomez and Justin Bieber arrive at the 2011 American Music Awards held at Nokia Theatre L.A. LIVE on November 20, 2011 in Los Angeles, California.

Singers Selena Gomez and Justin Bieber arrive at the 2011 American Music Awards held at Nokia Theatre L.A. LIVE on November 20, 2011 in Los Angeles, California. (Photo : Getty Images/Jason Merritt)

Selena Gomez has been in the rehabilitation facility in Nashville, Tennessee since September. In August, she stayed away from her fans on the social media, and admitted that she has been suffering from anxiety, panic attacks and depression.

The "Kill Em with Kindness" singer first entered the rehabilitation in 2014 following her Lupus diagnosis. At the height of the controversies surrounding her rehabilitation, her grandfather Ricardo Gomez has spoken publicly to reveal the real reason why her granddaughter had stepped out of the limelight.

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Ricardo and his wife Mary took care of Selena until she was four. In an interview with Fabulous, he revealed that Selena needed time to rest from her demanding schedules. He also clarified that her granddaughter has been worried about Justin Bieber because she still loves him.

However, a reunion between Selena and Justin is unlikely to happen. Ricardo cleared that Selena does not want to reconcile with Justin because of his past behavior. It could be remembered that since Selena and Justin broke off in 2014, several celebrity names such as Kendall Jenner, Kourtney Kardashian, Miranda Kerr and Sofia Richie have been tagged with the "Sorry" hitmaker.

The emotional turmoil that Selena has been facing after she separated with Justin, her sickness and her stardom are just too much for the actress/ singer to handle. The death of her dear friend Christina Grimmie in June 2016 even made Selena more depressed, according to The Sun.

The weeks following her breakdown at a concert, she wrote on her social media account that she feels disconnected with herself and her music. Selena, who has admitted that she is battling with depression, also sparked a word war with Justin in August on Instagram.

Selena, who has been in the Hollywood industry since she was 10, hardly had no time for her family. Her rehabilitation stint in 2014 and in 2016 are the only time she had broken away from her demanding career.

Meanwhile, Selena's ex-boyfriend was recently rumored visiting Selena in the facility despite her family's request that he should stay away from her. Knowing Justin, the Canadian singer reportedly did not abide the rules because he wants to prove that he still cares for her.

In August during Selena's announcement to take time off from singing and acting, she promised that she needs time to focus on herself and her health. She also admitted that she will focus on maintaining her happiness while resting.

"Around a year ago I revealed that I have lupus, E! News quoted Selena as saying. "It is an illness that can affect people in different ways. I've discovered that anxiety, panic attacks and depression can be side effects of lupus, which can present their own challenges."

Check out the details on Selena's rehabilitation: