But "evidence of forever" lasted about a year before the Selenators and Lovatics noticed Demi unfollowed Selena on both Twitter and Instagram in 2014, which is obviously a declaration of war in social media speak. That same year Demi reaffirmed her stance on Selena and the choice to unfollow her while appearing on Watch What Happens Live: "I think it's just one of those things where people change and people grow apart," she explained.
What about forever?!
Perhaps there's still a chance. In 2015 these two extended olive branches to each other by way of following each other again on social media...hurray! And not only did they keep tabs on each other, they also interacted. "IM so grateful you were born," Selena tweeted at Demi on her birthday.
Source : http://www.eonline.com/news/812851/a-handy-user-s-guide-to-selena-gomez-and-demi-lovato-s-relationship