Did Joe Jonas use Demi Lovato?

A report has suggested that Joe Jonas used Demi Lovato for publicity.

Apparently Joe and Demi’s relationship was nothing but a publicity stunt to promote Camp Rock 2.

“Demi had no idea that Joe was just using her,” said one insider reports ShowbizSpy,  and when she found out that the whole relationship was “just for show she had a mental breakdown over everything.”

“She felt everything was a big lie. When Joe and his father told her the truth, she couldn’t deal with anything anymore.”

“She totally lost it, and nothing was ever the same after that. She didn’t know who to trust or what was real anymore. In all honesty, she loved Joe, and to find out it was all fake, destroyed her.”

“She immediately started blaming herself after they split, and wanted to change everything. She tried to move on. She started seeing other guys to distract her. But being stuck on tour with Joe and his new girlfriend did her in as we see now… All her feelings just exploded at once.”

Could this be the reason Demi has checked into rehab?