Mean Girls at Work

There's this girl at my work and she's SO mean. Not just to me, but to everyone who isn't in her "posse". She always gossips and runs her mouth about others and tries to tell people how to do their job (when in reality her work ethic could use some improvement) and she's so rude and condescending. And if she doesn't get her way, she acts like a damn child. We're waitresses and one time our boss gave her a 3 table section while everyone else had a 4 table section and she threw a fit when my boss told her it was because some workers were complaining about her bullying and instead of saying "Okay, I apologize.", she fucking started crying and told our boss she was going home. I don't want to be friends with her, but how can I at least tolerate her?