20 years is a long time... But, the conversation about feelings back then either is still there or he has "found himself" and that may have gone far far away. Look to maybe have a dinner together (drive separate cars) and see how well your lives have gone. Could possibly be something there.

I'm a married guy but would really love to find out what my first real girlfriend has done with her life (about 20 years for me too). I just happened to see her mom last month on a family vacation to her home town. That was a bit strange.