The duo, who have been the best of friends since being on Camp Rock together, have had a pretty rocky past... but have always come through with their strong connection.
However, after Demi's overdose and a stint in rehab, she is now cutting people from her life by unfollowing them on Instagram, including Nick, Selena Gomez and Iggy Azalea.
Nick, Selena, and Iggy have all made comments publicly about Demi after her overdose, however removing these people from her social media may just be a part of her healing process.
A source has told ET that the singer is "happy and healthy" and " has dedicated herself to her sober life and has surrounded herself with people in her program."
Whatever is best for her!