I wish I could offer something in the way of advice, but this is outta my league I think.
I do have to say--you have gone through a heck of a lot of grief for a heck of a long time. You must really love your wife and family, and have the patience of a saint. Those are admirable qualities. Hang in there...you're right, it doesn't seem sane, but as long as you can keep yourself sane, well that beats the alternative.
Me: 43 W: 41 Together 2009, Married 2011 Sons 10 and 6, Daughter 5 Bomb 2/21/21. W moved out 10/2021