Do you think soliciting your W via a 3rd party (which will totally blindside her) to attend a marriage seminar will do any good?
You are backsliding Kevin. And this happens each time you see our W or she says one kind thing to you. This means you do not know how to manage expectations and you are not detached.
Do NOT have anybody call her regarding marriage C'ing or seminars. It will be the worst possible thing you could do. She has made herself perfectly clear and why would you keep pursuing her when she does NOT want that?