Well vitually all of the men's relationship manuals paint the same picture. When a man loses his sense of mission in life and self-esteem, it forces his wife to make up for that in the relationship and masculinize herself, which de-polarizes their sexuality and, hence reduces the attraction.
My wife told me once, that when I don't respect myself and value myself, she feels compelled to treat me like sh*t.
Act like a doormat and people will treat you that way.