One of the best stories on tam was a guy called Hantei who’s mother in law set his wife up with the son of a family friend.
My mother-in-law tried to do the same, when one of my wife's then recently divorced ex-boyfriend's started going to my mother-in-laws church with his mother. Since my mother-in-law doesn't like me, combined with her also thinking we're not really married, since we didn't tie the knot in a Catholic Church. Not forgetting my mother-in-law also resents me for our children not being raised as Catholics (although that's down to both my wife and I being atheists).That probably happens more than we'll ever know. It's not rare for friends and family to try to undermine marriages or even try to set people up if they don't particularly like the BH/BW.
As it turned out my wife wasn't interested, which is probably why she told me about it. While also telling me he was now ugly because he was bald. Of which his starting down the path of balding (which turned her off), combined with being too eager to please her at his own expense, is why she dumped him way back when.