How can I comfort my mother when she cries when her parents quarrel?

Of course, crying depends on the situation. First of all, we must find out why we are crying, so that we can really solve the problem itself.

If you are a child and make your mother cry, of course, apologize in the past and the problem of coquetry should be solved. If it is because of family reasons, such as a quarrel between husband and wife, it should be the joint efforts of both sides to raise the problem and solve it together, rather than keeping it from me.