See this struggle too much here not to address it.
Too many people here are fighting a emotional battle with their WAS. You have to realise that your logic will not change their feelings whether there is a A or not. Your words won't do it, your telling your WAS how sorry you are, how you will change, rubbing her feet, and pleading. These things reinforce how they already feel about you. To change the way they feel about you, you must change the way they think about you.
How do you do that? Most of us vets give the same advice in different words. The easiest and very productive way of changing the way your WAS thinks about you is to - agree with them (validate), drop the rope (let them go), and GAL (take care of yourself, become interesting). When somone comes in my office and is upset about their account the easiest way for me to calm them down is to agree with them. Now they can't be mad at me because we are on the same side of the table. If I try to tell them why they shouldn't be upset (logic) how are they going to respond?
Visualise the drop the rope analogy. Your WAS is running away and your R is the rope holding them back so the more you pull (pursue) the more they resist. Because the rope is causing emotional pain and you are the source of it. Who is going to be the one to change? (Last time I googled the "runback spouse" I got no hits.) So drop the rope - let them go, try something different, 180, walkaway - whatever you want to call it. Your own emotions (fear) keep you from letting go of the rope. (What if they don't come back?) It's not all in your control people. If you want to be a chick magnet make sure you a facing the right way otherwise you become a chick repellant.
Study up on the dynamics of relationships, marriage, attraction, and affairs. The DBing techniques are not unique to busting a divorce. The DB advice is about healthy relationships and loving yourself.
Understand what and why your WAS feels the way they do and think about how you can change their thinking about you. TEA - thought proceeds emotion and emotion proceeds action. Change your thoughts, open your mind, challenge your beliefs, try something different, look at how you see yourself, and detach. Get ahead of your WAS on the detachment curve and now you can lead.
This board has lots of different personalities and styles. None of us is going to give out advise that is designed to see you fail. We wouldn't be here if we didn't care or understand the struggle you are encountering. The advise is roughly the same regardless of the source. Remember your situation is unique just like everyone else.
Handle it by getting your thoughts squared away. What are my goals? How will I achieve those goals? Then monitor the results. Focus on solutions. I promise that if you get your thoughts in the right place you will be a success.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.