Tad, The posters have given you excellent advice. SA is absolutely correct when she says that anything can piss the mlcer off. I can attest to that one very easily. It doesn't necessarily have to be you or what you say or do, it could be someone else will piss her off over something that doesn't mean squat.
You need to live your life and please try not to walk on eggshells. I do not want to sound cruel or harsh, but the day she walked out, your marriage had ended. A divorce decree doesn't necessarily mean it is the end of the world for you and your wife. She needs that piece of paper to feel "free" once again. I know you do not want a divorce, but if it happens, please understand there is always, always the possibility of reconciling down the road, but it will take a very long time for that to happen, if it happens. No one knows what the future holds, i.e., you may meet someone new or you may move away. The same would apply for her as well. Life is a gamble and sometimes God has a way of cleaning house and putting all of us on a different path for what he wants us to accomplish.
Tad, keep the focus on you and what you need to accomplish before the court date.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.