Been there. Done that. The hurt doesn't go away overnight. It takes a while but it DOES go away. Make a list of everything she did wrong to you, the hurt, the food poisoning, EVERYTHING. After each entry write I WILL NOT LET ANYONE TREAT ME THIS WAY AGAIN. Everyday read that list. You will go through depression. You will go through pain. You will go through wanting her back. You will go through doubt. You will go through hope. You will go through a religious stage. You will go through a rebirth and convince yourself that things have changed. You will go through a stage of listening to sad songs and love songs on the radion. You will go through a stage of hating your family and friends because you are embarassed that they "told you so" but you didn't listen. You will go through all this. That is a promise. You will either do it NOW or you will take her back and just postpone doing it later. But rest assured, you WILL go through it. This relationship WILL NOT work. You will NOT be together forever. Don't kid yourself. This girl is POISON to you. As long as you are around her, you will be miserable. At least without her you will only be miserable for a short time.