I just don't think I will ever be able to look at her the same way I did 6 months ago. Maybe that could change over the long haul. But I don't think she would be willing to wait the necessary years (decades?) for me to possibly return to a mental state where I can accept her as my wife. That seems beyond anyone's tolerance, no matter how well intentioned. Best to cut the cord and let us both move on.
A1, that a deeply wise and profound acceptance of how your feelings would impact on an attempt to reconcile. Your insight into yourself is a real strength. I really think that there are times when parting can actually be a liberation for both parties, so that they can do their best to move on without remaining in a union in which a horrible event will permanently be hanging over them.
I am not saying that is how things are in every reconciliation; it obviously is not. However, there do seem to be a lot of couples who remain together after infidelity, but the magic has gone, the trust has gone, the love has gone. There are threads in these forums where people describe remaining together for several decades like that, and I always think they would have been better parting, and seeing if life would have been better for them that way.
And that is the thing; in some circumstances, divorce can actually be a positive thing, and the best option for peoples' well-being, and I think your counsellor understands that is how things are in your case. You certainly do, and having that certainty, and self-knowledge, is a good thing. Many people in similar circumstances do not have that, and they can go either way without feeling sure they are doing the right thing for themselves.
You are an intelligent man, a decent guy, and I am sure that life has many good things to offer you. Single life will not be so bad. You can get to know yourself again, take up hobbies you may have dropped along the way, or always wanted to try but not had the chance. I know that you are not minded to get into another romantic relationship at the moment, but one day that may change. What was nice was that several women took an interest in you recently, so even if you never pursue that side of life again, the potential is there for you if you ever do want to.
My homework is to compose a letter acknowledging the good in our relationship. She is concerned that I am going to dismiss the entire marriage as a waste of time or a mistake.
Top of the list of good things: two terrific DDs who love you. They alone mean the marriage was 100% not a waste of time. Sadly, the lengthy infidelity turned the marriage into a wasted opportunity to have a strong, respectful, loving union of several decades, but you had no hand in that. You did your part as a loving, supportive husband, and a loving, supportive Dad.
Second on the list: the marriage, despite your wife's other activities, provided your DDs with a safe, stable, secure home and foundation. That was not a waste; they sound like wonderful people, and raising them and keeping them safe can never, ever be seen as a waste.
Third on the list: The good times you had with WW. They may now be tainted by what you know, but at the time, you enjoyed them, and as such, they genuinely were good at the time.
I will stop doing your homework for you now! I just wanted to add my thoughts, and send you my heartfelt good wishes for your present, and your future.