Out of curiosity. Why do you try to placate her? How does this help?
when we were going to counseling over a year ago, the counseler told me that my wife may be bipolar. I think that is a bit extreme. I think she just has extreme mood swings when her period is coming on (which is about now). In another week, she will be a different person and we will probably be able to talk about it more.
I am a conflict avoider and a "pleaser" - as such, when she is in a better mood 10 days from now I will not bring up and rehash this incident. Also, I spend a good deal of my time making sure she is "happy" - whether that means running to the kitchen to make her a snack or cleaning up a mess in the house. When she gets in one of these "moods" she sees everything in a negative light and I am worthless. I can still remember 10 days ago when she told me I was "the perfect husband and she couldn't imagine being with anyone else..."
There is no sense debating or trying to reason with her. She has a "she's always right" mentality at times like these and it is pointless.
She had an important day today. I'm sure when I get home today it will have gone bad and it will be because *I* got her in a bad mood this morning by rolling my eyes...