You do not want to cross Bethenny Frankel on Twitter.
Already dealing with an ugly divorce and custody battle, the former Real Housewife went off on a hater yesterday, responding to some serious vitriol with a bit of her own.
"cupcake decorating w bryn at dc cupcakes & now girls' lunch," Frankel Tweeted harmlessly. "It's crazy to be able to spend a real girls' day w the peanut. #fliesby"
In response, some moron fired back:
"who gives a flying f--k! How soon after eating the cupcake do you purge? U look like an emaciated HIV patient."
And that's when this businesswoman couldn't take it anymore.
Acknowledging that the producers of her talk show - which goes nationwide in September - might not like this, Frankel, in the midst of a split from Jason Hoppy, wrote back:
"go F yourself' with your rude comments.hatersnotwelcome @peacewithmeself."
Seriously. Can anyone blame her?