I quarreled with my wife, and she went back to her parents' house. Should I call her when I go to her parents' house? Or call my mother-in-law and say, stop calling and just go, okay?

If you call, you don't have to call your wife. If you want to make a phone call, just say hello to your mother-in-law and talk to your wife. If you make a mistake, I believe your wife will forgive you. If not, tell your mother-in-law the ins and outs of the matter and let her help you. This matter will definitely be solved. I wish you happiness and hope to help you.