Treating waitstaff rudely is a major red flag. If he sees those in-service as beneath him, he is likely measuring peoples’ worth on the wrong things. And with that elitist attitude comes a constant-but-silent accusation of, “Try as you might, you will never please me or make me happy… but keep trying.”
What she wants: She wants a man who will treat others—regardless of their job, income, mode of dress, possessions, or station in life—with mutual respect and kindness.