My son has recently separated from his wife. Some friends of mine have a single daughter who is a similar age to my son, and they want to arrange a set-up. Both of our kids have children and some other things in common from their past relationships and upbringings, but they live in different cities and my son isn't even divorced yet, so I'm not sure I want to get involved. What should I do?
You may have gathered so far in this column that I'm a huge proponent of matchmaking and generally...