Last night, we saw that NeNe and Marlo, who were once great friends, fell out because Marlo tried to squash the beef between Kenya and NeNe. Remember in high school–or maybe middle school– when your friend gets a new enemy, they expect that person to be your enemy as well? Apparently, Marlo didn’t know the rules and the two ended up beefing on the last episode of Real Housewives of Atlanta.