DEAR MISS MANNERS: My husband’s old boss and his wife invited us to join a local yacht club. Ever since we joined, the wife has been bubbling with snippy comments about my grooming and hairstyle, alluding to where I may have purchased my clothing, and making numerous misguided class-oriented statements. She seems to have brought me into the club as a target, like a clay pigeon. In their eyes, we were good enough to be nominated and sponsored, but now that we’re in, I’m considered an “improvement project” by these elders. I have tried to generously assume the differences are generational (80s v…