"When you punch someone on a plane, enough is enough."
So says Demi Lovato in the latest issue of Elle, opening up about the confrontation with Alex Welch, a backup dancer on her tour last fall, that finally made Demi realize: Wow, I need help.
But the personal issues, later attributed to Bipolar Disorder, started much earlier than December, when the aforementioned incident took place.
"I was completely out of line all summer," Lovato says. "Just the worst attitude - totally ungrateful."