My wife is very abusive, and she does not like my parents and sister. What to do?

Hello doctor,

My wife is very abusive and says the wrong things sometimes. Her mood goes off, and she remains like that for two to three days. After which, I have to make a lot of effort by saying sorry so many times, and then she would become normal. During such a period, she will not talk or talk only through messages or talk in an angry way, and she behaves very angrily. Then she says anything and becomes very angry, and she starts shouting. She has mood swings issues. When she was a month and a half pregnant, her mood was bad for seven straight days. She does not like my parents and sister and does not want them to stay with us. A month back, when my son was born, my parents had come to see the baby. She did not like them visiting and wanted to send them out. But, she could not succeed in sending my parents back, so she forced me to drop her and our son at her parent's place. She does not want to come back, and she says that my mom and sister are doing black magic, and I support them. She is threatening divorce now. Earlier, she told me that during her childhood, her father used to beat her mother and used abusive words. She is very fond of her mother and wants to stay with her mother and does not want to come back. What should I do?