Love and Hurt Go Side By Side

Why is it that when we are hurt by someone, we tend to just go right back. No matter how much pain we go through we just stay there trying to hold on to something that is not there. Year after year goes by but your still stuck in that one position and feel like your life is going nowhere. So after you have had enough, you move on and leave all those years of hurt behind you. And then one day happiness appears. Your skeptical at first but say what the hell, I might as well try and see what comes from this happiness. It feels really good to smile and be happy again. You start to gain weight from the happiness your heart is feeling. You start to think wow miracles really do happen. But then your happiness is ruined once mistakes keep happening. The more mistakes that happen the more you start to think of all the years of hurt that you try to put behind you. Does one really get over the past? Can one really trust someone new? Does one even trust their own shadow after being hurt so much? Do we tend to push away the one who really cares for you and loves you just because your scared that they are getting to close to you? Do the mistakes the one you love makes have you doubting if they are really the one? Do we compare the mistakes the one you love does to you to our past? Do you really think that the one you love and feel all of this happiness with is really worth your trust? These are all questions that are running through my mind right now. And I just wish I really knew all of the answers.