After three days of marriage, my wife goes back to her mother's house every day. What should I say about her?

She's just not used to it. Give her more time, care about her from life and ask her what she needs. Do you need help with housework?

It's good to know what she's thinking. Let's work together.

She will start a new life soon, take care of herself and you. She was really at a loss and nervous. Don't blame her.

You can tell her enthusiastically that you will miss her when she goes back to her mother's house, or you will be bored and lonely.