Lindsay's Heartache

Lindsay Lohan recently split with longtime girlfriend, Samantha Ronson. According to msnbc.com, the star is heartbroken.

A friend of Lohan's stated that Lohan is "insecure" and relied on Ronson to constantly build her up. The actress's erratic behavior seems to have gotten worse.

"Lindsay barely sleeps, which explains a lot of her behavior. She's exhausted. She can't even sit down for a minute without pacing the room. It's really sad," the friend said.

Since the split, the Mean Girls actress has been keeping herself busy, having been spotted at the Chateau Marmont and Bar Delux.

Though this is not the first time Lohan has come off as sketchy. While most of Ronson's friends are worried that Lohan will act out, Lohan's friend thinks that Lohan is not the only one to blame for her behavior. "While Sam doesn't want to deal with the drama, in a sick way she's obsessed with that part of Lindsay's behavior," Lohan's friend said.