@Fly.. I recall that your situation was similar to mine (especially in the behavior of our w's) and that we did get here at about the same time. But, if I recall correctly, there are a couple of notable differences. The biggest being (from my point of view) that you are on your first marriage and you and your w have kids together. Those ties mean a lot.
Even if things seem hopeless now, anything is possible. I wish the best for you. If you ever want to try some of the crazy things that sort of started to work for me (but in the end it seems they didn't), let me know.
Me-45 W-44 T-7 years M-3 years (4th anniversary July 13, but we're separated) Kids from previous relationships (s14 d16 mine, s23, s24 hers)