my dad caught me and my boyfriend holding hands while passing by in a car. what...

[Momo E]

...should i do? so my boyfriend threw me a surprise birthday party at the park with all my closest friends. and it ended up with me crying because after the park, we went to see a movie which i never got the chance to watch because well, my dad saw me and my boyfriend holding hands while waiting at the corner. my mom told me on the phone that he called her and started yelling. so did my sister. now i'm afraid to even go downstairs to look at him. he's asian and violent. he yells a lot. and i grew up with my parents hitting me. what should i do? my dad's done a lot of abusive things in the past to my family. he's hit and pulled my mom's hair. he's dragged her by her hair as well. he's slammed my door against the car. he's already cheating on my mom and we all know about it. at this point, i have no idea on what to do.