I enjoyed reading everyone's input on this topic.
Something I didn't see mentioned though, is that when people are old enough and mature enough to marry, society somewhat expects problems between people to be worked out in a civil manner. Physical fighting is something that responsible adults do not resort to unless their safety or the safety of their family is threatened. So, to see two married women fight is somewhat taboo, as far as society is concerned. That makes it extremely exciting to me, to see two mature adult women in an aggressive catfight. And to add to that, I think it is even more exciting to see two moms fight.