Much like Lisa Vanderpump, I’ve made a huge mistake: I trusted Lisa Vanderpump. I never said she was blameless — I initially said she probably did set Dorit and Teddi up! — but I’d come to suspect that the real villains here were the Vanderpump Dogs Johns (Sessa and Blizzard). And I’ve been watching The Real Housewives of Beverly Hills long enough to kn…