Scared to return home - any advice?

When I was 15 I started a relationship with a guy in my class. He was my best friend. As the months past he started going on about how if I loved him I would have sex with him and I would only spend time with him. Slowly he started pushing me away from other friends. By the end of sophomore year I didn't have any friends. He consistently told me i was lucky I was pretty, that I wasn't good enough for anyone, that I should be grateful he liked me, and that the only way to show I loved him was to have sex with him. I kept telling him no, but it didn't stop him. He assaulted me multiple times over two months before I finally broke down and broke up with him. The months that followed weren't much better, the girl he had been hooking up with all summer started sending me death threats and no one believed I was hurting. The counselor I ended up seeing kept telling me he was a good kid and that I was jealous and wanted to ruin his life. I stopped eating for months during junior year, I lost 15lbs in two weeks and I was already underweight. Everyday I had to see him and everyday I was alone. I couldn't hide from him or take separate classes to avoid him. The loneliness pushed me towards self harm and suicidal tendencies.

I love my parents but I'm terrified of returning to where everything happened.