You're starting to get it. All the counseling in the world isn't going to save you unless YOU start to change. All of the snarky and critical comments you are seeing from her is because that's how the two of you have communicated for awhile. And once you do control your temper, it will take awhile for her to respond nicely to them. But you change and make them permanent. Having a bad temper is definitely not a good thing in life. Stepping away from an argument is a step, but it doesn't address 'WHY' you got angry in the first place.
It's like your MC. They will tell you what you can do physically to defuse an argument, but it doesn't explain 'WHY' you get upset in the first place.
The fact that your W was willing to work on your marriage before is a plus. YOU start to change and she will follow. You just need patience.
I really do think your M can be saved. But only when YOU save yourself first.
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.