I'm beginning to think that once there's deep feelings between two people, the flame may dim but it never dies completely.
Maybe they are hoping something might still be there. It has happened, and hopefully between two people who aren't married, otherwise there would be trouble on the horizon.
Yes, hopefully neither are married. I don't think you can ever just forget a loved one, but you can respect the fact that they have moved on. In my case, I didn't know they were cousins.
At our age, I think people often just want to know if that person is still alive and what their life has been like in the years since they have broken up.
I agree that if you truly love someone, they are always in the corner of your heart, long after you have moved on. You care about what happens to them. That fondness and memory, is a part of your history and has helped make you the person you are today. It doesn't mean you want to rekindled the romance.
In the past year I heard from the boy who I had a crush on when I was 10 years old. He saw my mother at a funeral and gave her my information. He is married and my mother was not pleased. I emailed him and we exchanged emails a few times but I have not heard from him in months. Not that I want to either. But it was nice chatting about the old neighborhood. So is this an "old flame" type event?
They are hoping to find what they lost
Sometimes the contact is made out of curiosity - wondering what the other person now looks like and what they are doing with their life. It could also be for sentimental reasons triggered by a memory. In some rare instances it may be to try and resurrect the relationship but I don't think that happens very often. I think Valentine's Day would be an ideal time to contact an "old flame" provided they don't get the wrong impression about why you are calling them.