Spouses react differently to addressing sobriety. Not all will understand and as many have said they may find themselves having to address their own addictions as well. It sounds like your wife may have a problem that she isn't willing to address. I remember drinking around sober people and I knew in my head I was having to much but I wasn't ready to address it and in turn kinda poked and prodded those around me to drink so I wasn't alone.
I agree that you keep going on your road and hats off to 6 months!!!! This is an adjustment since you are changing your way of life for the better and your wife will also realize this in time. Of course you know you can only change yourself and that is what you work on right now....slow and steady, one day at a time.
All the best!! Kim