"Exploded"? Geesh! Her "pi$$ed-off-ometer seems to be set a bit too tight.
She was pregnant at the time. It happens.
I am a right brain, male dominant thinker; I like logic, facts, and reason, with a strict sense of right and wrong. When I am not pregnant, I am a very rational person, to the point where my female friends don't understand how I can be so "detached" from issues and think so "coldly."
When I am pregnant, I'm working from the heart. My fuse is measured in millimeters, not inches, and I go right for the jugular if something irritates or threatens me. When I was carrying my son, I was subject to uncontrollable bursts of rage; I could literally feel the hormones pumping through my body. Several weeks after he was born, I was myself again.