Wife cheating, should I tell adult son?

[adinva]

A young adult like that is going to feel a great responsibility to repair his parents' relationship, and is just inexperienced enough to think he can really help. That's a lot of stress to put on a college student, and a lot of responsibility for your marital problems if he's unable to bring your wife back. In my opinion, you should consider him more of a kid than an adult in terms of your marriage. Tell him what he needs to know, in a way that maintains as much of his family stability as you can maintain. Don't use him as a confidante.