I can see why you are contemplating getting out. You have been very patient and doing many good things.
The only thing I am struggling to pick up in your posts is where you are trying to emotionally connect with your W. The everyday romancing and flirting which is integrated in everyday initmate life between H & W. Not the "one off" occassions that make one big impression but are quickly forgotten because seldomly are they ever followed up, but the little things that happen day to day.
I don't know if you are familiar with the Love Bank concept and the 10 emotional needs so I'll post the link anyways.
Also, in Venus and Mars book, there is a 101 tips on scoring points with the opposite sex. I found alot of value in these on a daily and ongoing basis.
If you haven't heard about these before, perhaps they are few stones that you to turn over and see if anything underneath moves.
Suit
"It's better to have no spouse than have a bad spouse"