Lois is the epitome of a control freak, was the definition of a narcissist, and always believed she is right. This has caused a lot of friction between her, Hal and the boys over time. She can't accept that she can be wrong at time because of her horrible childhood.

Lois's rage, intolerance and constant need for control stem from several factors: Her completely miserable and unloving childhood. Her immense regret at the very poor decisions she have made.