fight catfight fight catfightEarly this morning, X17online photogs spotted Lindsay camping out on Samantha's doorstep for over two hours waiting for her lady love to come home.

Lindsay arrived at Sam's Hollywood Hills home with an assistant (driving Samantha's car), at 4am, when it was still dark outside. Our photogs informed the troubled starlet that the DJ wasn't home. "Not yet," Lilo replied.

But after placing several phone calls and knocking repeatedly on the door, it was apparent that Sam wasn't coming home anytime soon. But that didn't deter Lilo, who sat down on the stoop and waited for two and a half hours.

At one point, when the sun had started to come up, Linds thought she heard a noise inside and pleaded with Sam to open the door, but, as photogs again informed her, Sam wasn't home.

After almost falling asleep on the doorstep, eventually, Lindsay called her bodyguard to come and pick her up and take her back home.

Has Lilo really lost it? Or did Sam invite her over only to humiliate her (again) in front of the paps? And if so, why can't Lindsay break away from this clearly dysfunctional relationship?