The WW's guilt, I believe, comes later. In the beginning (let's say the time of BD), it's all about feeling justified. Her version of justification, that is.
As a Christian, I knew I should feel guilt, remorse, sorrow, etc., for my waywardness (especially my A). Although I finally made a decision to do the right thing, my heart stayed cold. I would pray that God would help me feel what I needed to feel so that I could be right with Him and my H, and so that our M could heal. I knew we would never move forward until this happened, and it would always hinder me in spiritual growth.
So, the remorse finally came. The guilt, sorrow, regret and shame nearly killed me. It lasted a long time. God forgave me. My H forgave me. Forgiving myself? Not so much. There are still time I struggle with it. I consider myself extremely blessed b/c I have been given another chance. If not for the assurance of forgiveness.....I would be destroyed. Thank God for Grace!
This is very deep Sandi2, thank you for sharing that with us. God is kind and forgiving.