Laogong Mei Tian Huan Renshe

To solve the family crisis, Li Weiyin had no choice but to marry Xu Yimo, the young master of the Xu family, whose IQ equals that of an eight-year-old child. On the first day after they got married, her cute husband was clingy to her and said, "Weiyin, I'll be a very good boy. You must love me very much." On the second day, however, her husband became aloof and didn't care about her, saying, "Relax. I'm not interested in that blockhead's wife." On the third day, her husband became a gentleman wary of her and asked, "Who are you? Why are you in my room?" On the fourth day, her husband acted frivolously and made eyes at her, saying, "Tell me, which of the three of them married you?" Li Weiyin finally realized that her husband was more a man with a multiple personality disorder than a blockhead. (Source: Webnovel)