One word: Patience, don't destroy what took you so much effort and patience to reach, remember you are in for a marathon not a sprint. They are still very touchy for several months, but you will notice in 2 or 3 months that things will start to normalize and you will be able to talk about your triggers with him.
Resentment somehow will fade away in a few weeks, don't try to engage him in any talks right now about remorse or OW, he is probably not ready for that at all, so it's a big No No, don't poke him on it or he might go backward. I totally get how anger and resentment alternate in your mind.
Me 52+ WH 57+ Married 20 + Piecing since 2016 (ready to give up...)