Hhmmmmmmmmm, sometimes that is because over time we find out that the more sympathetic spouse in a M isn't without fault or blame. Sometimes kids (who have become adults) get very angry about one parent's allowing or tolerating things in the R or more specifically slights toward the children and stayed silent. Sometimes kids get very angry with the "long suffering" parent. I'm not saying that this is the reason but I wonder if it might fit. My Dad is a case in point. He often gets angry with his Mom for being "weak" and "ineffectual" in her family and in life. She died when I was young so I don't know much in the way of particulars but I gather that my Grandfather on that side was a Mama's boy who let my Great Grandma (who was a tough old bird) run his life - she survived both of them.
