Did Lauren really not see how bitchy Lo was to Audrina?

It makes me really angry how Lauren puts the blame on Audrina for growing distant, but does absolutely nothing to stop Lo from being such a bitch to her. Lauren would also get a bit snarky when she was with Lo. She just never seemed to acknowledge this. You can't control other people's behavior, but Lauren could have told Lo to cut it out. I don't know how anyone could tolerate Lo. She was snarky, snobby, and two-faced.