We forget so easy

Yes, we do. We remember the promises once made, bitter and full of resentment: never to make that mistake again. Like a drunkard who, after waking up in the morning with his head pounding, screams to himself: I shall never drink again. But he does. We always do. We always give in, we always give it another chance, we, unammendable optimists: next time it's going to be better, we're going to have more control, and the morning will be wonderful. It never is. We give it all another chance only to taste the same disillusionment in the end. Why do we do it? Why don't we drop the hope as soon as we face the first failure?