In Freud’s vision of things we are, above all, ambivalent animals: wherever we hate, we love; wherever we love, we hate. If someone can satisfy us, they can also frustrate us; and if someone can frustrate us, we always believe that they can satisfy us. We criticize when we are frustrated — or when we are trying to describe our frustration, however obliquely — and praise when we are more satisfied, and vice versa. Ambivalence does not, in the Freudian story, mean mixed feelings, it means opposing feelings.
Love and hate — a too simple, or too familiar, vocabulary, and so never quite the right names for what we might want to say — are the common source, the elemental feelings with which we apprehend the world; and they are interdependent in the sense that you can’t have one without the other, and that they mutually inform each other. The way we hate people depends on the way we love them, and vice versa. And given that these contradictory feelings are our ‘common source’ they enter into everything we do. They are the medium in which we do everything. We are ambivalent, in Freud’s view, about anything and everything that matters to us; indeed, ambivalence is the way we recognize that someone or something has become significant to us… Where there is devotion there is always protest… where there is trust there is suspicion.
We may not be able to imagine a life in which we don’t spend a large amount of our time criticizing ourselves and others; but we should keep in mind the self-love that is always in play.