Have you ever introduced two people to each other who later married each other AND eventually divorced each other? ~

Not to my knowledge. 

Mihyang and Winko. I had met Mihyang who was visiting Canada as a student from South Korea learning English and introduced her to Winko who was a friend of mine. Love at first sight. They married then seven years later divorced. Mihyang told me that Winko had become too much of a control freak.

Where is your other hiding?

Not officially married but common law for over 12 years and had a child together. The breakup was ugly from what I heard but I had moved province by the time of the split and was not still in touch with either of them.