2010 was a rough year for Demi. She fell hard for her "Camp Rock 2" co-star Joe Jonas and the two happily dated each other while on tour together. But then Joe pulled the plug on their relationship. After the split, she said, "We were in a relationship and we broke up, and at one point, I was really mad at him." Demi eventually checked into treatment for emotional and personal issues at the end of 2010. Since then, though, Joe and Demi have remained friends and support one another. "Now, I can, fortunately, say, that him and his brother Nick, have always been there for me," Demi explained. "We have a great friendship." Talk about maturity!