Kim Cattrall has gone after her former Sex and the City co-star Sarah Jessica Parker again. “Let me make this VERY clear. (If I haven’t already) You are not my family. You are not my friend,” Cattrall wrote on Instagram over the weekend. “So I’m writing to tell you one last time to stop exploiting our tragedy in order to restore your ‘nice girl’ persona.” Cattrall also left a link to a New York Post story titled, “Inside the mean-girls culture that destroyed Sex and the City.” The actress’ post came after Parker tweeted condolences to Cattrall, whose brother was found dead last week.