If your both in the same house, and you feel like eggshells coming, get out of the house and take a walk around the block. I was going down to the library and sitting down reading a lot of the books ppl recommended here. Anything I could to keep as much separation at first as I could so it wouldn't get confrontational. If you have to clean/work around the house, put on some headphones and listen to music or an audio book.
Don't take anything personal. Believe half of what you see, and none of what you hear.