He'll love the bit where you say he's a loony who gets his big penis out a lot, and so will his wife!
Yes, actually, re-write the thread a bit, just leave in the handsome bit and the bit about being curious as to what happened to him. Wives have not bearing on that kind of thing, it's fine - if an ex emailed you to say i just always wondered what became of you, your dp wouldn't be cross would he? I think it's fine to do a casual 'hi, came across this and was wondering if it was you as always wandered what you were up to'