Ashley, I disagree strongly here with your decision. This is EXACTLY where you should have pushed, and said something like "Their IS no 'try' -- only 'do.' If you're not willing to agree to end all contact with her, then you leave me with no alternative than to begin making my own decisions to protect myself and our son."
Everything you said to him after that point, he already knows, and you're trying to "teach" him. You can't teach an adulterer. All you can do is let them know what YOUR boundaries are, and what the consequences are for violating them.
Puppy- When I said I didn't push him I meant that I did not push him to make a decision/give me an answer at that time. After he said he was going to "try" to stop contact, I told him that means nothing has changed. I told him I need to look out for the best interests of my S and I and proceed as planned. Then I went on to say what I wrote earlier. Sorry - I should have clarified that.
Me: 39 H: 39 S: 15 M: 18 years Bomb: 6/3/09 H moved out: 10/15/09 H moved back:5/30/10