Women lack self-control. He says male infidelity is as bad as female. But blames women for breakdown of marriage. Sen always uses muliebris pejoratively, virilis positively. Women are inclined to rage, stirred by insult, petulant, anxious, excessive grief.
Women have same capacity for virtue as men.
Nature has made women different. You should preserve the differences. Seneca assumes male readers. Women possess virtus only under certain circumstances. Usually virtus is masc, voluptas is fem.