After Her Husband Returned from War with a Woman, Both of Her Sons Were Furious

My husband led troops into battle, while I managed the household for eight years, showing respect and filial piety to my mother-in-law and raising our two sons. But when he returned, he brought with him a pregnant female general. He said the general's status was noble and demanded I relinquish my position as his principal wife. He even said that out of consideration for my years of hard work, he would make me a concubine and wouldn't mistreat me. I decisively wrote a divorce agreement and left. What a joke! My two sons are a newly appointed top scholar in the imperial examinations and a young, renowned general. I am, in fact, a first-rank noblewoman; what good man couldn't I find? Why would I want to be his concubine?