"I don't think lindsay can sleep alone- absolutely refuses even to try- so she'll drive around looking for some guy to be with," says a pal

"One late night she drove up to Adam Levine's house and text-messaged him from her car, asking to be invited in. But he refused her- and she was furious.

"Another night she did the same thing to actor Ryan Phillippe. He wouldn't open the door for her either. She's so afraid to be alone that she picks up strangers at clubs or on the street, just because they're good-looking."

"One night at the nightclub Les Deux, some guy I'd never seen before joined us. When I asked who he was, she said: 'Oh, he's the cashier at the liquor store I went to the other night. Isn't he hot?'

"if she can't find someone to spend the night with, she stays up until daylight- then takes some Xanax or Ambien to get some sleep."