Kristen Stewart living off of Red Bull and cigarettes after breakup

While Robert Pattinson is out promoting his newest film Cosmopolis, his ex-girlfriend Kristen Stewart is reportedly living off of Red Bull energy drink and cigarettes.

According to AZ Central, the actress is taking the breakup really hard after Pattinson found out that she was cheating on him with her married Snow White and the Huntsman director.

In an attempt to clear the air, both Stewart and Sanders issued an apology in the wake of the controversy.

Nevertheless Pattinson and Stewart broke up after three years of dating, and now a source reveals to Showbizspy.com, “'Kristen is a nervous wreck and existing on a diet of cigarettes, sugar-free [energy drink ] Red Bull and the occasional bag of potato chips.”

The source adds, “'Kristen is grief-stricken and has hit rock-bottom. In many ways, Kristen living off cigs and Red Bull is a way of punishing herself.''

While Stewart is divulging in self-loathing, Pattinson is on the road promoting Cosmopolis. He spoke to both Jon Stewart on The Daily Show and he also appeared on Good Morning America. Neither program got a clear story from Pattinson regarding the split.

Conflicting reports surfaced that Stewart was dropped from the sequel of Snow White and the Huntsman, whether or not there is any truth to that has yet to be revealed.

Also, less than 2 weeks ago, Stewart dropped out of her role in Cali.