Scared of my girlfriend?

Im very terrified of my girlfriend right now. During spring break I was at her house and my phone was in my bag and then she decided to be a lil nosey azz and go thru my fone. She read some of my texts and there was this one girl who kept tryna flirt and stuff.....saying stuff she shouldnt have. SO anyway when she saw it she just threw my fone at me and started gettin real mad. She was just yelling and screaming asking who she was and then i was in shock so i couldnt really say anything so next thing i knew she left me in her bedroom and went to her dads room. Now her dad has guns in his closet and i just heard her yelling and screaming so i freaked out and grabbed my bag and jus ran out her house quickly and didnt even look back. And now im like really scared out my mind. I skipped yesterday cuz im too scared to go to school in case i see her and im gonna skip again today and probably the next day. But if i keep skipping ima gonna get in trouble but im so afraid of running into her....what should i do?