What emotional needs and/or financial needs of hers are you still filling?
Someone once advised on here for a betrayed spouse to take just ONE THING each week that they USED to do for their spouse, and replace it with something they should do for themselves. I liked that.
As you know, I ultimately played the ultimate "D" hole card. But only after bombing Hiroshima and Nagasaki, and giving my wife several opportunities to turn away from the destructive path she was on. But it wasn't a TACTIC; I was really, truly DONE.