Most WS who post here are trying to be better. Not all. But most.
Any person who has an affair with a married person,shows blatant disregard for other people,including the AP's children, and their own children.
An AP IS a POS. All of them. Your wife,my husband, and all the others who chose to cheat. A good person doesn't help destroy a family. However, if dday happens, and they stop cheating, reach remorse,become honest, and work on themselves,they are no longer POS.
Your wife is very much stuck in victim mode. She is very defensive. She wants to run from your emotions and the consequences of her affair. She is still minimizing her affair. She believes it was an emotional affair that went underground and became physical. She calls it a short EA and a ONS. Until she can be honest with herself, you can't expect her to be honest with you.
Her feelings for the OM are still there. Otherwise she would see him for what he was. She should look at him as the weapon she used to decimate her husband. I look at it like this..she was the gun,he was the bullet, and together they shot you, his wife,and all of the kids involved.
What specifically has she said about OM being a good person?