Not sure what to do? I am scared. [CA]

I have been married for a 16 years now. But for the last couple of years were just dragging. My husband became alcoholic would yell at me when no one was around, but when we were out or is with someone else like other families he would be so nice to me telling me how beautiful I look he's so lucky to have me. And I would never say anything and just smile I was getting use to it. All I wanted was to have a nice family thinking one day this will end he will change the culture I come from is more to live for others not yourself. About five years ago I saw his Facebook he was talking to random ladies and with one he was talking dirty a lady he met in Dominican when we were on trip a year before so I confronted him he told me that I'm stupid and making up stories so he changed his phone password and unfriend me on his account. But went by he started to abuse me more mentally he will say bad stuff about my parents but when was with them he acts like that he's their son. One time he broke my shoe rack banged on floor and then my chair to scare me. He said for me to go call "your parents I'm not scared of them" . But I always made it look like I'm so happy. Two years ago he had concussion when he fell on his head because he was drunk when were at some party, so I spent the night at hospital praying for his long life, he got better with in a week and went back to work. Two days later police came to my house to arrest him I asked him what happened he said that I had a fight with my Co worker. I was worried about him I told him do not worry I'm with you so I was praying please God don't let anything happen to him. Then all of the sudden I called one of his co-workers and found out he was having an affair with other another co-worker for the past six months. But now her husband found out and pressed charges against him because her husband took her back. The charges that he was forcing her. So I was frozen could not cry or complain I felt empty all those sacrifices for nothing. I gave him ride from station to home and we got home asked him who's that lady he said someone who really liked me but her husband is asshole and pressed charges against me so she don't want to live with him. He was telling me I'm his mother I hated him so much I was in pain that no one could see or feel. I was scared of him what if he harm me so I was quiet but angry. Then he didn't want to face court so he left went back home in India. I cried almost every day and told some Co workers but I knew I had to be strong found a second job to support myself and family. It's been a whole year and finally I started to learn how to be happy and be strong, but now he called me and said he's coming back he misses me and kids. I don't know what to do what are my rights I do not want to see him. I hate this man. I cannot go through this again I'm so tired. He says he changed but I don't care he just left us and not caring and hurt my feelings.

I will appreciate any help, I just want to know what actions I can take in this situation.

Thank you,