I partially agree with what you are saying; but as much as she did leave; I had a part in how I was acting at the time that made her go. Yes, it wasn't enough in my mind to make her leave; but... (The affair, she keeps telling me happened after we had split and she wanted me to know that it wasn't the reason. ) So, I see it as we both had a fault in the breakup.
Anyway, I didn't invite her Friday night...that was one of our old neighbors saying we should go to dinner with the kids. So, I asked; but away from anyone else, so she could say no if she wanted to.