Over the last few months, Christina Aguilera has...
... Divorced her husband.
... Started dating Matthew Rutler.
... Been exposed online.
... Shown up at Jeremy Renner's birthday party drunk.
... And forgotten the lyrics to the national anthem.
Now, according to the latest issue of Us Weekly, her friends have a new reason to be concerned. An insider tells that magazine how Christina had sex with Rutler had a recent family party and then:"Aguilera flipped out on her mother, Shelly Kearns. Christina was so wasted before guests arrived that her mother told her to lie down and sober up. Christina yelled, 'Who do you think you are?' Then she called her brother's girlfriend a whore. It was crazy! Nobody can get through to her. They think she's trashy. And her ego is out of control. She's really spiraling... I would be shocked if she's not in rehab in the next month or two."
Let's hope someone can get through to Aguilera soon.