Same thing happened to my sister. She met some witness guy and they were engaged when my wife and I got married. Of couse she wouldn't come to the wedding and would barely talk to us when we visited my mom. She was very "holier than thou". Well she got married to the fella and one year later they were divorced. As for my wife and I, five years this May and never happier.
Kinda throws the "You will know them by their love" thing out the window doesn't it?