When communication stops between two people, should you act as a middleman or individual in the situation? I say, for the most part, no. Recently a friend's plans were upset because someone acted as a middleman in a situation--rather than let my friend be part of a decision, the middleman made the decision. That wasn't right--my friend should have been apart of the decision.
So if you're asked to be a middleman, I suggest that you tell the person requesting that no, and let the people involved do the talking. Onward.