None of my business to keep people from destroying their own lives.
Your wife sleeping with another man, your son not have his family intact, your self-esteem, and the OM's wife being kept in the dark aren't your business either I guess?
Good luck with your approach.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.