Please Please get out. Have your mom keep the dog for a bit so he will be safe and get yourself safe. You are just used to living with it so you do not see how serious it is. I don't want to frighten you but my sister's ex brutally mutilated and killed a dog in front of her. Later it was abusing the boys. Please get out and be safe. You deserve to have a life!!! Please let us know what you are doing.