He has given her his mobile phone number to give to me. I'm terribly tempted to see him again, but I'm afraid all my old feelings for him will come back if I do. I was doing fine until this happened and now I can't decide whether to see him or not. But if I don't, I think I'll always wonder what might have been. This is because no one stays the same.
People grow up and often have different needs.
In your case, an older man who had a big influence on you when you were younger suddenly pops back into your life many years later. But you're not a young girl anymore. You're married and, until this happened, content with your life. Despite your adoration and a two-year relationship, you didn't keep in touch. What all this says is it was a lovely relationship at the time, but it came to a natural end and you moved on to someone else you loved enough to marry.