From my experience guilt, shame, regret cycle was all about him, what a terrible person he was, how he'd let everyone down, he retreated into himself, it was all about him. He was reactive. That stage did so much damage.
When he moved to remorse it became all about us. What could he do to be and do better. His love was action based. He was determined to show me he could be a safe partner and bent over backwards to do so. He was proactive.
No blame was ever attributed to me or our marriage by my husband, he entirely blamed his own coping strategies, selfishness, entitlement and narcissistic tendencies. I think that helped as we had what I believed was a happy marriage, lots of fun, and a wonderful life together,
My husband has hit remorse, genuinely so. I do not check his phone, I do not check up on him, I am not bitter or angry, his remorse and actions helped me heal. But it took a lot of time and consistent words followed by consistent actions.
If you really want to keep your options open and are sitting on the fence then affair recovery videos are brilliant, 'how to help my spouse heal from my affair' is a great roadmap book and I always recommend surviving infidelity forums, their regular posters are amazing.
I'm not a cheer leader for reconciliation, I'm a cheer leader for doing what ultimately makes you happy but doing it with your safety and well-being as a priority.