When I first came her, I, too, wanted to jump immediately to "forgiveness" and just stuff everything behind me.
I was told that it is too soon. I needed to feel my feelings before I could heal from them and let go.
Now, I am very recently divorced..and similar to your situation...all of a sudden he could do all the things that he couldn't/wouldn't do before that had caused me such frustration. I was so hurt, angry, resentful!
But, even tho' I don't know what is going on with him now....I can realize that alot of it was probably, while good, an initial reaction and would be hard to sustain, one can't change their thinking, habits of a lifetime etc overnight.
I hope he is well. But those intitial moves would take sustained determination and effort.
And if he couldn't do it before, he didn't just magically get it overnight.