Emotionally Abused

I don't have all the answers to everything. I don't know where to start but I let him back in and even though it's not physicall it's serious. I am in so much pain. I have never felt so low and he always bring my spirits up and then break me down to the core. He's always making false promises to me and like a fool I want to believe him though I know the truth. With him it's not as simple as not callin I feel like he's everywhere and I can't escape him. You ever heard the saying the same person you'd jump a bullet for is the same one who pulling the trigger. I can't take it anymore. I'm done with his bs. It's giving me migraines. I can't sleep or eat. I don't know what to do. 😥😭😱 I don't see how you can get as much company from someone and they make you feel so all alone.