Advice!

Everytime me and my boyfriend fight or get in a disagreement he IMMEDIATELY says I don’t love you. Or curses at me. We planned to have a day at house and drink and hangout and we got in a disagreement and he immediately says I don’t love you and calls me names. He didn’t even drink, I did and he immediately says I hate you you’re a slut and so on... he doesn’t let me leave him or anything. Advice please! I been with him for a year now.