It looks like the bottom has totally fallen from beneath the former Hills besties!
L.C.'s current mood is 'disappointed' with a sad face.
Audrina is 'shocked' with a happy face.
As of today, unlike before, they both do NOT list one another as a 'top friend'.
Did some crazy shiz go down in Vegas this past weekend?
L.C. was in Sin City with high school BFF and Hills 'villain' Lo Bosworth for her birthday.
Audrina was there, too, hosting her own party.
There were no sightings of LC, Audrina and Lo together AT ALL in Vegas.
Is Lauren 'disappointed' that the brunette is no longer kissing her ass????
[Images via MySpace.]