Past and Future

Why is it when you are really feeling someone and start falling in love with them, things from your past come back to haunt you? Every time I try to find happiness with a new guy, a past mistake or ex comes back into my life and puts up a road block. I cannot outrun my mistakes or the people I tried to eject from my life. Feelings need to know how to run their course and stay gone. They do not need to disappear and then resurface it only confuses and messes up things. I wish that I could move on and stay moved on. But, I keep revisiting memories back in the good days when things were going right and I felt safe and loved all day an night. I remember when things were going right for the first time in my life and I felt at peace. An then it all went horribly wrong and it ended. And now when I'm trying to find a new happiness the old one keeps knocking at my door, saying hello and asking to try once more. And I have to say no, because I either hurt my future by revisting my past or ruin a rekindled past by choosing to risk a chance of love with my future. Either way I have to make a decision and will most likely end of getting hurt. I just hope that I make the right decision for once and learn to read my heart.