When you have a big fight with your husband, do you prefer to be separated for a while to cooling down the situation, or asked for third person to be your mediator?

Personally, I think a fight between a couple should be sorted between the two, unless it is something that both cannot amicably end. As far as a third person is concerned, tread carefully. Because a third person may be fair, but may not really understand your problem the way you'd want them to. In addition to that, their commitment to sorting things out would differ from yours. My advice is to sort it out between the two of you and avoid involving a third party. There is nothing love cannot solve.