I have the same issues with my W. She is still at home. when we are around each other for more than an hour or so something always goes wrong. I am starting to develop the ability to sense the start of the "downhill slide". I have just recently developed a few good strategies to get heck out when I sense its going to start getting bad.
She was at the able last night grading papers and I sat down with her. I had a cold one and brought her a glass of wine. We talked a little about the next days schedule and then a little about the rest of the week. That turned to the weekend and I could tell she was going to bring up an issue with the plans that I had made. Her tone changed, just before she started to change the topic. I faked a yawn and excused myself because I was sleepy. Told her we could finish the topic tomorrow.
M42 W40 T17 M15 S13 S11 BD 7-14 A discovered 7-14 WAW moved out 10-3-14 D final 2-23-15