Eliza Pancakes is one of the most infuriating sims in this game, or at least for me she is. I went and looked up her information and her traits are Materialistic, Neat, Perfectionist, and the other...
Bob is cheating on Eliza in my game (I didn't tell him to, I don't play that household) and also has a child with Eliza (who isn't cheating, poor lady lol). - mc cmd center provided the child, not the affair.