I can totally relate. I think I now realize that I sometimes am missing more than was ever really there. Missing her, and the times before the bomb, is totally normal and justified.
Sometimes, I try to redirect this feeling and wonder how amazing it will be if my wife ever comes back, or (more likely) what a R will be like with a new someone once this storm is over my D is done. And also reflect on what kind of person that I've grown to in the last 12 months.