2old, I think you have moved the needle a little bit and that is good. A positive response and one that was unexpected, so even better.
A month after I found out about my H's PA, was our 25 wedding anniversary. I still got him what I was going to get him "as if" we were okay in our R, something he loved and meaningful to him. I got...nothing. 25 years and nothing. I asked him out to dinner and we went and it was nice, but still no positive feelings from him. So I think what you got back from your W was a small, but great step.
Me:49 H:47 S: 16 T:27 M:25 My EA: 2001 His PA: 10/2007, 6/2013 Separated, but H still in house
Find your Shambala: a place of peace and happiness.