Rekindling a romantic relationship from the past is quite acceptable. Remember those special moments you spent together that you wished would last, sadly all good things come to and end. You kept thinking what would have happened if the two of you were still together. But maybe they still might have feelings for you and want to take another chance with you as well.
It is the stuff that great stories are made of. Two love struck souls who crossed paths once upon a time separated by circumstances beyond their control. Both spending years thinking about that moment that is burned forever on their memories. Both longing for what was and wishing that it could be again.
If most of your relationships did not work out, it is possible that you are still hung up on someone. Wake up from your reverie and take action. Find that person if you have lost contact with them. You have plenty of options nowadays to track them. Exhaust all your resources to get them back.
Once you have located them, it gets tricky. To win back a love, you first need to find out their situation. The best thing to do is to write a letter or get a message to them saying that you were going through some old things and ran across something that reminded you of them. Just let them know that you were curious about them and ask what is going on.
Talk about your status. Don't be too obvious about your intentions; make them think you are not that interested. Let them be if they are in a good relationship. Or they could be pretending. Nevertheless, find out what you can about them.
Make an effort to be friends with them if they are not in a relationship. Get closer to them but don't push hard or you might ruin a good thing.
If you have been in close contact with each other, tell them they can call you anytime they want if they need to talk to someone and give your number. Not asking for their phone number takes the pressure off things. If they want to call you, then they will drop hints.
Before you know it, your friendship will blossom into something special and you start seeing each other often. There are tell tale signs if you still have feelings for each other. Give it a little time. If things turn out right then there is a possibility that you can get back together.