Good lord dude, I think you're taking the Mr. Nice Guy thing a little too far. Right now she is using your kids to further her agenda and you're not doing anything about it. I would definitely have said something when she told your kids you didn't love them. What kind of BS is that?!
I still think you need to stand strong as a man and start getting more respect from her. I did that and my W hasn't talked to me like your W has in over a year.
While I may not get us any closer to R, at least we can go to things together as a family and actually have a pretty good time although she is distant. In my case, I think she's going through depression, but that's beside the point.
Start standing up for your boys. See how they see things from their POV. They see mom running the show and you just letting her spew her venom. Show them that while you do love their mom, a R (even a failing one) requires RESPECT.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.