We have been seperated since mid July, but it is kind of wierd. He is staying with his parents and when his sister asked a few weeks ago if she should tell her kids yet he said no. That was before he went 'no contact' on me though.
As far as adiction and affairs, yes, I do believe that I will have to confront him about the affair at some point. I feel strong enough and detached enough to do it. Just feels like shooting myself in the foot to do it now.
Just as a side note since you mentioned adiction, alcohol is going to be a topic for discussion too. I don't know if he is chemically dependent on drinking or not, but I feel strongly that it is an emotional adiction for him. He self medicates when upset and uses it as an excuse for poor decisions or just plain inaction.