He is really pursuing you... be really cautious...
If he is really having a change of mind about your relationship that only the beginning, he needs to struggle to be able to dig deeper into himself to figure out how to transform himself into a better husband/person.
I am glad that you are finally getting neutral and not spiraling up and down with his mood of the moment. If he is really changing, he might go through a phase of depression (it's tough to acknowledge what you did and take responsibility for it) and withdrawal, during that time, leave him alone, he needs that time to "heal" and figure out things on his own, don't put any pressure on him others than he needs to respect your boundaries.
Me 52+ WH 57+ Married 20 + Piecing since 2016 (ready to give up...)
