breakup

So I had been dating this guy for about a year we broke up last Friday he was mad because I couldn't come and see him because I had things to do with my parents. He called me a bitch, whore, he said fuck you im done and all this stuff I really don't understand what I did wrong I'm truly heart broken. And yes things like this has happened before because he got my phone and this guy texted me about home work and he freaked out and honestly scared me. I love him I do, I've been with him for a long time and I'm attached. I don't know what I should do or how to move on