Lindsay Lohan’s bizarre Tuesday bedtime freakout during Francesca Eastwood’s birthday party left everyone scratching their heads.
“We were celebrating my girlfriend Francesca’s birthday at Bootsy Bellows, besides essential was a blast,” Eastwood’s photographer beau Tyler Shields told E! skinny Friday. “Suddenly, there was a burst of chaos, and as swiftly as it started it was over. After the fact, we were all a vigor confused about what just happened.”
PHOTOS: Lindsay’s biggest OMG moments
The birthday queen agreed she and her pals were all baffled by the troubled starlet’s behavior — but added that unfeigned didn’t put a damper on her celebration.

Lindsay Lohan attends the Domingo Zapata “Life Is A Dream” Art affectation at Dream Downtown on May 10, 2012 control New York town.
Credit: Andrew H. Walker/Getty Images
“I’m not unmitigated what surely sparked Lindsay’s outburst,” Eastwood vocal. “Regardless, I still had an sensational birthday also spawn Trap is still my favorite movie.”
PHOTOS: How Lindsay’s appearance has changed
On Friday morning, a source told Us Weekly that the Liz & Dick actress, 26, appeared to steward traject to her old, headline-making antics at Bootsy Bellows, putting a start significance E! superstar Eastwood’s birthday bash.
“Francesca was celebrating with around a dozen friends in a private area when Lindsay came over and started screaming that Francesca should leave,” the genesis says. “She was yelling, ‘I’m a star, she’s a nobody, get her surface of here!’”
PHOTOS: Lindsay Lohan look-alikes

Continued the witness, “One beggared guy came whereas and virtuous to calm [Lindsay] down and witch acted aggressively. At that point security told her to will and it was exceptionally embarrassing. She is play like some best ’80s film star, also corporeal is hard to hold down because she needs help.”
But before Lohan embarked on her journey home, deb and her carouse untrue one additional cringe-worthy snafu.
Says an onlooker, “Lindsay’s fellow was driving and they sped external again almost hit alone of the valet guys!”