After I had invested twenty-some years of my life in her, thousands of
prayers, and thousands and thousands of dollars, I did not want some man thinking
that she was a cheap sexual object to take advantage of.
Is the man's wife wrong to believe that her father sees her as nothing but voiceless, thoughtless, choiceless Property? An investment. Is she wrong to wonder if any supposed relationship with her father has been a meaningless charade?
The letter goes on to encourage the man to be a spiritual leader in the household and make sure his wife goes to church and reads the Bible.
So the man's wife is reduced to a caged animal who cannot decide when to have sex, what to read, or where to go.
The man's wife is very upset with the man's father in law.