I don't know Choco.
As much as flowers and notes and all that are nice, I don't think that is what is the issue in your M. Am I wrong?
My H is very nice to me and does all that stuff and more. And look at us still today.
The real issues are covered up by these "band-aids" that just won't make your W get out of that mindset she is surely in.
I don't have a real solution for you. Wish I did. Just don't be too surprised that lots of affection doesn't solve the M problems. I'm leaning towards the confrontation style more. Ignoring the EA is not a good idea. And Especially since she KNOWS you know Something is up. If you ignore it, she may get the distinct impression you are going to wuss out and not call her on her BS. (Not that I'm speaking from any experience here. )
LFL