Demi Moore has been having a rough go of things since her split from Ashton Kutcher, but the actress displayed some noticeably bizarre behavior last night at a party in Miami.

Wearing a very short dress that no 50-year-old should be sporting, regardless of how hot they look for their age, Demi seemed to make the other guests like rocker Lenny Kravitz uncomfortable with her bold dance moves, while she periodically tossed her hair over her face when photographers tried to get a shot of her, according to Daily Mail.

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Who else was at the event? Her new 26-year-old boyfriend Vito Schnabel. Yes, there's a 24-year age difference between the pair! They didn't pose for photos, but reportedly had a private PDA session away from the cameras. "They are definitely a couple. She is definitely more down to party than Vito," said a source at the party.

As long as her partying doesn't involve illicit substances, we're cool with it. You'll recall that Demi checked into rehab last February for anorexia and an addiction to prescription meds, and was also rushed to the hospital the month before after inhaling nitrous oxide.
 
Do you think Demi is heading back to her old ways?
 
Photos courtesy of Getty Images