I'm sorry. My parents used to do that all the time. (they got divorced, and now they still aren't allowed to talk to each other face to face) Sometimes it is better if they get divorced. Just try not to get involved in the argument, and be nice to both of your parents. At a time when they are calm, and happy with each other, and if you feel comfortable, sit them both down, and talk to them about how you feel about them fighting. It might make them try to fight less often.