Lauren Conrad's World Is Crumbling

Things between Audrina Patridge and The Hills star villain Lauren Conrad are on the outs!
And, instead, Audrina is on the up and up wit Speidi!!!!
Sources reveal exclusively to PerezHilton.com that Patridge was hanging out with Heidi Montag and Spencer Pratt on Friday night.
“They were all hanging out at the Sidekick party in Hollywood for the launch of Tony Hawk‘s new Sidekick,” a source tells us. “They were filming for the hills for over an hour and acting all friendly.”
There is some bad news, though.
Audrina was hanging out with Justin Bobby at the party too.
Still!
Why????????
[Image via WENN.]