How true, when my wife gets snappy I know it's time to remain quiet, in the beginning I would ask whats wrong and she would then flare up, "you can see I'm worried about something, leave me alone", after 30 minutes or so she's back to normal. This morning was a point in question, turns out our son (17) who has just returned from army training is ill but he went to school anyway to catch up on his lessons he missed when training because the end of term exams are just around the corner so she decided to pull him out of class and take him to the doctors, he remonstrated against this but she just left to take him anyway, that stressed her, when she's stressed out I leave her in peace.