I'm certain there's a reason that memory becomes so blurred after awhile or no one would ever do anything. If you remembered how much something hurt so vividly you'd never attempt to ever go there again. Like giving birth. I imagine these women who after it's over slowly forget the pain and all the discomfort and sleepless nights and unbalanced hormones and they have a second child.
Or like letting yourself love someone and have it break your heart. You'd like at some stage people would wise up and stop doing it. Just seems safer that way yes? That letting anyone have any control over your feelings is such a careless thing to do.