What if mom and dad quarrel and mom doesn't eat? I'm almost persuaded to cry or not to eat. What should I do? I am really anxious to ask my brother and sister to answer me.

On a special day, such as your father's birthday or your birthday, find a chance to talk to him alone. Start with how mom loves him and you, how to cherish and protect this family, and then tell him how much you love them and this family. Only when they are angry and quarreling will they feel sad. I believe you should cry when you say this, let him know that they will get old, the family atmosphere will become more and more warm, and you will grow up. I hope you will care about and cherish your home in the future.