Her getting upset at the off is her way of shutting you up. A good offense is the best defense, so to speak.
How would your W react if suddenly you stopped meeting her most important needs? Would she talk to you about it, or just get nasty until you shaped up? I'm trying to gauge her emotional intelligence. It seems that she has some very poor relationship skills.
If you stay in your M as it is, you will eventually lose your love for your wife, like so many WAS you read about on these boards. When that happens, any attractive person that comes along and starts meeting your needs for intimate conversation and admiration will draw you in like a moth to a flame....
The separation is to help you save your M before its too late. If your wife won't engage in R discussions with you AT ALL, then what are you to do? Sit back and meet her needs while yours go unmet for the rest of your life? That sounds like a very sad story.
If your W cuts you off because you want more from your M, then she doesn't really love you, does she?