You need a plan of action for yourself. Know what you are doing. "Taking whatever may happen" as some people may say, is not a clear plan. That's why I suggested you do some deep thinking about your values and principles, your belief system.
You can't talk your way into a better R with her. Neither does avoiding conflict work. I get the sense you may be a conflict avoider. Don't decide to leave the M as a way of avoiding problems, if you want to stay M. If you leave it, it needs to be based on your core values, and not avoidance. Make sense?
I hope one of your boundaries is respect. A woman has to respect her H! It is an absolute necessity if he ever wants her to be sexually attracted and feel those "in love" feelings for him.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!