I don't know why everyone is saying move out and move with your mom. Your mother is your father's enabler,if she had ever stood up to him once and maintained her stand this wouldn't be happening. You an adult,move out. If things get better for you,take care of your mom and dad and fulfil your duty to them. For now, save your sanity. Your mom will always go back to your dad either because of "what people will say" or stockholm syndrome.