*sigh*... ok, this is how you might get it out there...
"[i]W, I was at my IC the other day and the IC said to me... 'SP, you might want to share your feelings with your W.' So, W... I felt I wanted to share now...
I understand how you could be feeling [this way (insert something that you understand how she could be feeling)].
I like that approach, but I wouldn't ask about appreciation for my contribution. I would ask instead about if she understands, or has tried to understand what my life was like and what I was feeling for the past few years. That seems to be a moderate question that doesn't seem too pushy, and fits within the realm of building better communication.
I won't see her again until Saturday, another trip, so I've got some time to give it some thought.