kgroff22:Is it wrong to have an ex-boyfriend on Facebook?
My answer to that is that it depends. Friending someone doesn't necessarily mean anything. The reason Facebook is so popular is because it encourages people to expand their social networks to their largest possible extent. It even recommends that you friend people whom you don't know but are "friends of your friends." It's not uncommon for people to dig deep into their past to find names of people they can friend. I've personally searched for my high school girlfriend to friend her (though I couldn't find her) even though I have no desire at all to see her again. Hey, I even I friended my best friend from elemetnaty school from 1982.
That being said, Facebook
can be used to initiate an affair. If your wife is communicating more with her ex-bf than with other other people she's friended, or if she's going beyond "reconnecting" with him and starting "rekindling," then it's an inappropriate thing to do. If I was in your place, I would tell my wife that it was okay to have him as a friend if she promises not to chat or personal message him, and make all communications with him common (on her "wall").