Credit: Photo via Instagram Photo: Porsha Williams-Stewart Looks Pretty in Purple

You don’t have to be a rocket scientist to figure out that Kenya Moore and Porsha Stewart really don’t like each other, but when Kenya asks Porsha to lunch on this week’s episode — and Porsha shows up! — we were hopeful that the duo would be able to break bread and work through their differences.

Sadly, we were mistaken. While the meal starts off fine, the gals don’t even have time to order sweet teas and salads before the insults start flying. We won’t bore you with the specifics (since it’s pretty much the same argument all over again), but when Kenya leaves the restaurant, Porsha uses an offensive remark to address her nemesis.

Why you gotta go there, girl? Watch the sneak peek below to see what Porsha said! Do you think she went too far?

Credit: Bravo Photo: Sneak Peek of The Real Housewives of Atlanta Season 5, Episode 13: Kenya Moore and Porsha Stewart Meet For Lunch ... and Argue! (VIDEO)